1.
COinS
–
A coin is a small, flat, round piece of metal or plastic used primarily as a medium of exchange or legal tender. They are standardized in weight, and produced in quantities at a mint in order to facilitate trade. They are most often issued by a government, Coins are usually metal or alloy, or sometimes made of synthetic materials. Coins made of metal are stored in large quantities as bullion coins. Other coins are used as money in transactions, circulating alongside banknotes. Usually the highest value coin in circulation is less than the lowest-value note. In the last hundred years, the value of circulation coins has occasionally been lower than the value of the metal they contain. Exceptions to the rule of face value being higher than content value also occur for some bullion coins made of copper, silver, or gold, while the Eagle, Maple Leaf, and Sovereign coins have nominal face values, the Krugerrand does not. The first coins were developed independently in Iron Age Anatolia and Archaic Greece, India, Coins spread rapidly in the 6th and 5th centuries BCE, throughout Greece and Persia, and further to the Balkans. Standardized Roman currency was used throughout the Roman Empire, important Roman gold and silver coins were continued into the Middle Ages. Fiat money first arose in medieval China, with the paper money. Early paper money was introduced in Europe in the later Middle Ages, the penny was minted as a silver coin until the 17th century. The first circulating United States coins were cents, produced in 1793, Coins were an evolution of currency systems of the Late Bronze Age, where standard-sized ingots, and tokens such as knife money, were used to store and transfer value. In the late Chinese Bronze Age, standardized cast tokens were made and these were replicas in bronze of earlier Chinese currency, cowrie shells, so they were named Bronze Shell. According to Aristotle and Pollux, the first issuer of coins was Hermodike of Kyme The earliest coins are associated with Iron Age Anatolia. Early electrum coins were not standardized in weight, and in their earliest stage may have been ritual objects, such as badges or medals, issued by priests. The first Lydian coins were made of electrum, a naturally occurring alloy of silver, most of the early Lydian coins include no writing, only an image of a symbolic animal. Anatolian Artemis was the Πὀτνια Θηρῶν, whose symbol was the stag, a small percentage of early Lydian/Greek coins have a legend
COinS
–
A
Swiss ten-cent coin from 1879, similar to the oldest coins still in official use today
COinS
–
Numismatics
COinS
–
An original Celtic
Biatec coin and its replica on a former Slovak 5-
koruna coin (1993-2008)
COinS
–
An
oxhide ingot from
Crete.
Late Bronze Age metal ingots were given standard shapes, such as the shape of an "ox-hide", suggesting that they represented standardized values.
2.
Numismatics
–
Numismatics is the study or collection of currency, including coins, tokens, paper money, and related objects. Early money used by people is referred to as Odd and Curious, the Kyrgyz people used horses as the principal currency unit and gave small change in lambskins, the lambskins may be suitable for numismatic study, but the horse is not. Many objects have been used for centuries, such as shells, precious metals, cocoa beans, large stones. Today, most transactions take place by a form of payment with either inherent, standardized, Numismatic value may be used to refer to the value in excess of the monetary value conferred by law, which is known as the collector value. Economic and historical studies of use and development are an integral part of the numismatists study of moneys physical embodiment. First attested in English 1829, the word comes from the adjective numismatic. It was borrowed in 1792 from French numismatiques, itself a derivation from Late Latin numismatis, genitive of numisma, throughout its history, money itself has been made to be a scarce good, although it does not have to be. Many materials have been used to form money, from naturally scarce precious metals and cowry shells through cigarettes to entirely artificial money, called fiat money, many complementary currencies use time as a unit of measure, using mutual credit accounting that keeps the balance of money intact. Modern money is essentially a token – an abstraction, paper currency is perhaps the most common type of physical money today. However, goods such as gold or silver retain many of the properties of money, such as volatility. However, these goods are not controlled by one single authority, coin collecting may have existed in ancient times. Caesar Augustus gave coins of every device, including old pieces of the kings, petrarch, who wrote in a letter that he was often approached by vinediggers with old coins asking him to buy or to identify the ruler, is credited as the first Renaissance collector. Petrarch presented a collection of Roman coins to Emperor Charles IV in 1355, the first book on coins was De Asse et Partibus by Guillaume Budé. During the early Renaissance ancient coins were collected by European royalty and nobility, Numismatics is called the Hobby of Kings, due to its most esteemed founders. Professional societies organized in the 19th century, the Royal Numismatic Society was founded in 1836 and immediately began publishing the journal that became the Numismatic Chronicle. The American Numismatic Society was founded in 1858 and began publishing the American Journal of Numismatics in 1866, in 1931 the British Academy launched the Sylloge Nummorum Graecorum publishing collections of Ancient Greek coinage. The first volume of Sylloge of Coins of the British Isles was published in 1958, after World War II in Germany a project, Fundmünzen der Antike was launched, to register every coin found within Germany. This idea found successors in many countries, in the United States, the US mint established a coin Cabinet in 1838 when chief coiner Adam Eckfeldt donated his personal collection
Numismatics
–
Two 20 kr
gold coins from the
Scandinavian Monetary Union.
Numismatics
–
A
Roman denarius, a standardized
silver coin.
3.
Currency
–
A currency in the most specific use of the word refers to money in any form when in actual use or circulation as a medium of exchange, especially circulating banknotes and coins. A more general definition is that a currency is a system of money in common use, under this definition, US dollars, British pounds, Australian dollars, and European euros are examples of currency. These various currencies are recognized stores of value and are traded between nations in exchange markets, which determine the relative values of the different currencies. Currencies in this sense are defined by governments, and each type has limited boundaries of acceptance, other definitions of the term currency are discussed in their respective synonymous articles banknote, coin, and money. The latter definition, pertaining to the systems of nations, is the topic of this article. Currencies can be classified into two systems, fiat money and commodity money, depending on what guarantees the value. Some currencies are legal tender in certain jurisdictions, which means they cannot be refused as payment for debt. Others are simply traded for their economic value, digital currency has arisen with the popularity of computers and the Internet. Currency evolved from two basic innovations, both of which had occurred by 2000 BC, originally money was a form of receipt, representing grain stored in temple granaries in Sumer in ancient Mesopotamia, then Ancient Egypt. In this first stage of currency, metals were used as symbols to represent value stored in the form of commodities and this formed the basis of trade in the Fertile Crescent for over 1500 years. Trade could only reach as far as the credibility of that military and it is not known what was used as a currency for these exchanges, but it is thought that ox-hide shaped ingots of copper, produced in Cyprus, may have functioned as a currency. It is thought that the increase in piracy and raiding associated with the Bronze Age collapse, possibly produced by the Peoples of the Sea, brought the trading system of oxhide ingots to an end. In Africa, many forms of value store have been used, including beads, ingots, ivory, various forms of weapons, livestock, the manilla currency, the manilla rings of West Africa were one of the currencies used from the 15th century onwards to sell slaves. African currency is still notable for its variety, and in many various forms of barter still apply. These factors led to the metal itself being the store of value, first silver, now we have copper coins and other non-precious metals as coins. Metals were mined, weighed, and stamped into coins and this was to assure the individual taking the coin that he was getting a certain known weight of precious metal. Coins could be counterfeited, but they created a new unit of account. Most major economies using coinage had several tiers of coins, using a mix of copper, silver, gold coins were used for large purchases, payment of the military and backing of state activities, they were more often used as measures of account than physical coins
Currency
–
Cowry shells being used as money by an Arab trader.
Currency
–
Song dynasty Jiaozi, the world's earliest paper money.
4.
Banknote
–
A banknote is a type of negotiable instrument known as a promissory note, made by a bank, payable to the bearer on demand. Banknotes were originally issued by banks, who were legally required to redeem the notes for legal tender when presented to the chief cashier of the originating bank. These commercial banknotes only traded at face value in the served by the issuing bank. Commercial banknotes have primarily been replaced by national banknotes issued by central banks, national banknotes are generally legal tender, meaning that medium of payment is allowed by law or recognized by a legal system to be valid for meeting a financial obligation. Historically, banks sought to ensure that they could always pay customers in coins when they presented banknotes for payment and this practice of backing notes with something of substance is the basis for the history of central banks backing their currencies in gold or silver. Today, most national currencies have no backing in precious metals or commodities and have value only by fiat, with the exception of non-circulating high-value or precious metal issues, coins are used for lower valued monetary units, while banknotes are used for higher values. The idea of using a durable light-weight substance as evidence of a promise to pay a bearer on demand originated in China during the Han Dynasty in 118 BC, the first known banknote was first developed in China during the Tang and Song dynasties, starting in the 7th century. Its roots were in merchant receipts of deposit during the Tang Dynasty, as merchants, during the Yuan Dynasty, banknotes were adopted by the Mongol Empire. In Europe, the concept of banknotes was first introduced during the 13th century by such as Marco Polo. Counterfeiting, the forgery of banknotes, is an inherent challenge in issuing currency and it is countered by anticounterfeiting measures in the printing of banknotes. Fighting the counterfeiting of banknotes and cheques has been a driver of security printing methods development in recent centuries. Paper currency first developed in the Tang Dynasty China during the 7th century, although true paper money did not appear until the 11th century, the usage of paper currency later spread throughout the Mongol Empire. European explorers like Marco Polo introduced the concept in Europe during the 13th century, napoleon issued paper banknotes in the early 1800s. Paper money originated in two forms, drafts, which are receipts for value held on account, and bills, the perception of banknotes as money has evolved over time. Originally, money was based on precious metals, Banknotes were seen as essentially an I. O. U. or promissory note, a promise to pay someone in precious metal on presentation. With the gradual removal of precious metals from the system, banknotes evolved to represent credit money. Notes or bills were referred to in 18th century novels and were often a key part of the plot such as a note drawn by Lord X for £100 which becomes due in 3 months time. Its roots were in merchant receipts of deposit during the Tang Dynasty, as merchants, before the use of paper, the Chinese used coins that were circular, with a rectangular hole in the middle
Banknote
–
Banknotes with a face value of 5000 of different currencies.
Banknote
–
The current
banknotes of the Swiss franc series possess at least eighteen security features. As of 2015, the Swiss 1000-franc banknote is the world's highest value currently-issued banknote, followed by the
Singapore 1000-dollar note and the
500 euro note.
Banknote
–
Song Dynasty Jiaozi, the world's earliest paper money.
Banknote
–
A Yuan dynasty printing plate and banknote.
5.
List of currencies
–
A list of all currencies, current and historic. The local name of the currency is used in this list, for a list of current national currencies, see List of circulating currencies. For a list of currencies, see List of alternative currencies. For a list of currencies, see List of digital currencies. For a list of currencies, see List of historical currencies. For a list of currencies, see List of fictional currencies. For a list of currencies with ISO codes, see ISO4217, Gallen Frank – St. Gallen Thaler – St
List of currencies
–
Numismatics
6.
ISO 4217
–
The ISO4217 code list is used in banking and business globally. ISO4217 codes are used on tickets and international train tickets to remove any ambiguity about the price. The first two letters of the code are the two letters of the ISO 3166-1 alpha-2 country codes and the third is usually the initial of the currency itself, so Japans currency code is JPY—JP for Japan and Y for yen. This eliminates the problem caused by the dollar, franc, peso and pound being used in dozens of different countries. Also, if a currency is revalued, the currency codes last letter is changed to distinguish it from the old currency. Other changes can be seen, however, the Russian ruble, for example, changed from RUR to RUB and these currency units are denominated as one troy ounce of the specified metal as opposed to USD1 or EUR1. The code XTS is reserved for use in testing, the code XXX is used to denote a transaction involving no currency. There are also codes specifying certain monetary instruments used in international finance, the codes for most supranational currencies, such as the East Caribbean dollar, the CFP franc, the CFA franc BEAC and the CFA franc BCEAO. The predecessor to the euro, the European Currency Unit, had the code XEU, the use of an initial letter X for these purposes is facilitated by the ISO3166 rule that no official country code beginning with X will ever be assigned. Because of this rule ISO4217 can use X codes without risk of clashing with a country code. ISO3166 country codes beginning with X are used for private custom use, consequently, ISO4217 can use X codes for non-country-specific currencies without risk of clashing with future country codes. The inclusion of EU in the ISO 3166-1 reserved codes list, the ISO4217 standard includes a crude mechanism for expressing the relationship between a major currency unit and its corresponding minor currency unit. This mechanism is called the exponent and assumes a base of 10. For example, USD is equal to 100 of its currency unit the cent. So the USD has exponent 2, the code JPY is given the exponent 0, because its minor unit, the sen, although nominally valued at 1/100 of a yen, is of such negligible value that it is no longer used. Usually, as with the USD, the currency unit has a value that is 1/100 of the major unit, but in some cases 1/1000 is used. Mauritania does not use a decimal division of units, setting 1 ouguiya equal to 5 khoums, some currencies do not have any minor currency unit at all and these are given an exponent of 0, as with currencies whose minor units are unused due to negligible value. There is also a code number assigned to each currency
ISO 4217
–
An
airline ticket showing the price in the ISO 4217 code "
EUR " (bottom left) and not the
currency sign €
ISO 4217
–
A list of exchange rates for various base currencies given by a
money changer in Thailand, with the Thailand Baht as the counter (or quote) currency.
7.
Local currency
–
In economics, a local currency is a currency that can be spent in a particular geographical locality at participating organisations. A regional currency is a form of local currency encompassing a larger geographical area, a local currency acts as a complementary currency to a national currency, rather than replacing it, and aims to encourage spending within a local community, especially with locally-owned businesses. The currency may not be backed by a government or be legal tender. About 300 complementary currencies, including local currencies, are listed in the Complementary Currency Resource Center worldwide database, local currency - a complementary currency used in a locality. Regional currency - a local currency where the locality is a larger region, auxiliary currency, microcurrency, Eco-Money - less common synonyms for community or local currency. Private currency - a currency issued by an individual, business or non-governmental organization, Complementary currencies are a type of private currency. Sectoral currency - a complementary currency used within one economic sector, the Wörgl experiment illustrates some of the common characteristics and major benefits of local currencies. Local currencies with negative interest rate or demurrage tend to much more rapidly than national currencies. The same amount of currency in circulation is employed more times and it produces greater benefit per unit. The higher velocity of money is a result of the negative interest rate which encourages people to spend the more quickly. Local currencies enable the community to fully utilize its existing productive resources, especially unemployed labor. They are based on the premise that the community is not fully utilizing its productive capacities, the alternative currency is utilized to increase demand, resulting in a greater exploitation of productive resources. Since local currencies are accepted within the community, their usage encourages the purchase of locally produced and locally-available goods. Thus, for any level of activity, more of the benefit accrues to the local community. For instance, construction work undertaken with local currencies employs local labor, the enhanced local effect becomes an incentive for the local population to accept and utilize the scrips. Some forms of currency can promote fuller utilization of resources over a much wider geographic area. The Fureai kippu system in Japan issues credits in exchange for assistance to senior citizens, family members living far from their parents can earn credits by offering assistance to the elderly in their local community. The credits can then be transferred to their parents and redeemed by them for local assistance, airline frequent flyer miles are a form of complementary currency that promotes customer-loyalty in exchange for free travel
Local currency
–
Salt Spring Dollars are a community currency issued by the Salt Spring Island Monetary Foundation. The currency is used by both tourists and local residents of Salt Spring Island.
8.
Company scrip
–
Company scrip is scrip issued by a company to pay its employees. It can only be exchanged in company owned by the employers. In the UK, such systems have long been formally outlawed under the Truck Acts. In the United States, mining and logging camps were created, owned and operated by a single company. With this economic monopoly, the employer could place large markups on goods, making workers dependent on the company, in 19th century United States forested areas, cash was often hard to come by. This was particularly true in lumber camps, where workers were paid in company-issued scrip rather than government issued currency. In Wisconsin, for example, forest-products and lumber companies were exempted from the state law requiring employers to pay workers wages in cash. Lumber and timber companies paid their workers in scrip which was redeemable at the company store. Company-run stores served as a convenience for workers and their families, in certain cases, employers included contract provisions requiring employees to patronize the company stores. Employees who wanted to change their scrip to cash generally had to do so at a discount, lumber company scrip was redeemable in lumber as well as other merchandise. According to the Wisconsin Historical Society, such an option may have appealed to new settlers in the region, taking some of their wages in lumber may have helped them build a much-needed house or barn. Coal scrip is tokens or paper with a monetary value issued to workers as an advance on wages by the company or its designated representative. As such, coal scrip could only be used at the locality or coal town of the company named. As there were no other retail establishments, this constituted a monopoly, the country musician Merle Travis makes a reference to coal scrip in the song, Sixteen Tons on the Folk Songs of the Hills album. The practice has been documented as recently as September,2008, Truck system Private currency Disney dollar Harte, C. J. Coal mine scrip collectors to meet, cawood, Steve, past president National Scrip Collectors AssociationScrip Definition
Company scrip
–
Scrip used by Olga Coal Company,
Coalwood, WV
Company scrip
–
Various forms of coal scrip
9.
Local exchange trading system
–
LETS allow people to negotiate the value of their own hours or services. Michael Linton originated the term Local Exchange Trading System in 1983 and for a time ran the Comox Valley LETSystems in Courtenay, the system he designed was intended as an adjunct to the national currency, rather than a replacement for it. LETS networks facilitate exchange between members by providing a directory of offers and by allowing a line of credit to each. Members IOUs are logged in an accounting system which publishes a directory. In case of a default, the loss of value or units is absorbed equally by all members, which makes it a mutual credit exchange. For instance, a member may earn credit by doing childcare for one person and spend it later on carpentry with another person in the network, or they may spend first. Many people have difficulty adjusting to different kind of money system. A conventional national currency which yields interest to savers and costs interest to borrowers incentivises different behaviours to mutual credit which has no commodity value, most groups range from 50-150 members with a small core who use the system as a way of life. After flourishing in the 1990s, the LETS movement is now populated by the same aging people. Interest in local currency has moved on to other such as Time-based currency. In many countries apart from Canada, USA and UK, the distinction between LETS and timebanking is much less clear, as most LETS now use time as their unit of account. On the whole, the movement has been slow to adapt to the internet, reluctance to engage with technology, a belief in decentralisation/localisation and lack of funds all contributed to this. Michael Linton has stated that such systems are personal money networks rather than LETS, the first LETS required nothing more than a telephone, an answering machine and a notebook. Since then there have been attempts to improve the process with software, printed notes. Members whose balances exceed specified limits are obliged to move their balance back towards zero by spending or earning, LETS is a full-fledged monetary or exchange system, unlike direct barter. LETS members are able to earn credits from any member and spend them with anyone else on the scheme, since the details are worked out by the users, there is much variation between schemes. In a number of countries, various government taxation authorities have examined LETS along with forms of counter trade. Generally for personal arrangements, social arrangements, hobbies or pastimes and this generally covers the vast majority of LETS transactions
Local exchange trading system
–
Numismatics
10.
Time-based currency
–
In economics, a time-based currency is an alternative currency or exchange system where the unit of account/value is the person-hour or some other time unit. Some time-based currencies value everyone’s contributions equally, one hour equals one service credit. In these systems, one person volunteers to work for an hour for another person, thus, they are credited with one hour, others use time units that might be fractions of an hour. Time-based currency exchanges date back to the early 19th century, the National Equitable Labour Exchange was founded by Robert Owen, a Welsh socialist and labor reformer in London, England, in 1832. It was established in Birmingham, England, before folding in 1834 and it issued Labour Notes similar to banknotes, denominated in units of 1,2,5,10,20,40, and 80 hours. John Gray, a socialist economist, worked with Owen and later with Ricardian Socialists, in 1848, the socialist and first self-designated anarchist Pierre-Joseph Proudhon postulated a system of time chits. Josiah Warren published a book describing labor notes in 1852 and he also went on to trademark the terms Time Bank and Time Credit. Time banking is a community development tool and works by facilitating the exchange of skills and it aims to build the core economy of family and community by valuing and rewarding the work done in it. The worlds first time bank was started in Japan by Teruko Mizushima in 1973 with the idea that participants could earn credits which they could spend any time during their lives. In the 1940s, Mizushima had already foreseen the emerging problems of a society such as seen today. In the 1990s the movement took off in the USA, with Dr Edgar Cahn pioneering it there, piecemeal efforts to rebuild genuine community. In particular Cahn focused on the top-down attitude prevalent in social services and he believed that one of the major failings of many social service organizations was their unwillingness to enroll the help of those people they were trying to help. He theorized that a system like time banking could the infrastructure of trust, Time Bank members sometimes refer to this as a return to simpler times when the community was there for its individuals. An interview at a bank in the Gorbals neighbourhood of Glasgow revealed the following sentiment. The Gorbals has never — not for a long time — had a lot of community spirit. Way back, years ago, it had a lot of community spirit, thats what I think the projects doing, trying to bring that back, that community sense. Time dollars are a complementary currency used as a means of providing mutual credit in Time Banking. They are typically called time credits or service credits outside the United States, Time Bank members exchange services for Time Dollars
Time-based currency
–
Key concepts
11.
Ancient Greek coinage
–
The history of Ancient Greek coinage can be divided into four periods, the Archaic, the Classical, the Hellenistic and the Roman. The Archaic period extends from the introduction of coinage to the Greek world during the 7th century BC until the Persian Wars in about 480 BC, the Greek cities continued to produce their own coins for several more centuries under Roman rule. The coins produced during this period are called Roman provincial coins or Greek Imperial Coins, the word drachm means a handful, literally a grasp. Drachmae were divided into six obols, and six spits made a handful and this suggests that before coinage came to be used in Greece, spits in prehistoric times were used as measures in daily transactions. Because of this aspect, Spartan legislation famously forbade issuance of Spartan coin, and enforced the continued use of iron spits so as to discourage avarice. In addition to its meaning, the word obol was retained as a Greek word for coins of small value. The obol was further subdivided into tetartemorioi which represented 1/4 of an obol and this coin is mentioned by Aristotle as the smallest silver coin. Various multiples of this denomination were also struck, including the trihemitetartemorion valued at 3/8 of an obol and these coins were made of electrum, an alloy of gold and silver that was highly prized and abundant in that area. By the middle of the 6th century BC, technology had advanced, making the production of pure gold, accordingly, King Croesus introduced a bi-metallic standard that allowed for coins of pure gold and pure silver to be struck and traded in the marketplace. The Greek world was divided more than two thousand self-governing city-states, and more than half of them issued their own coins. As such coins circulated widely, other cities began to mint coins to this Aeginetan weight standard of. Athenian coins, however, were struck on the Attic standard, over time, Athens plentiful supply of silver from the mines at Laurion and its increasing dominance in trade made this the pre-eminent standard. These coins, known as owls because of their central design feature, were minted to an extremely tight standard of purity. This contributed to their success as the premier trade coin of their era, tetradrachms on this weight standard continued to be a widely used coin through the classical period. By the time of Alexander the Great and his Hellenistic successors, the Classical period saw Greek coinage reach a high level of technical and aesthetic quality. Larger cities now produced a range of silver and gold coins, most bearing a portrait of their patron god or goddess or a legendary hero on one side. Some coins employed a visual pun, some coins from Rhodes featured a rose, the use of inscriptions on coins also began, usually the name of the issuing city. The wealthy cities of Sicily produced some especially fine coins, the large silver decadrachm coin from Syracuse is regarded by many collectors as the finest coin produced in the ancient world, perhaps ever
Ancient Greek coinage
–
Above: Six rod-shaped obeloi (oboloi) displayed at the
Numismatic Museum of Athens, discovered at
Heraion of Argos. Below: grasp of six oboloi forming one drachma
Ancient Greek coinage
–
Electrum coin from
Ephesus, 620-600 BC, known as
Phanes' coin. Obverse:
Stag grazing, ΦΑΝΕΩΣ (retrograde). Reverse: Two incuse punches.
Ancient Greek coinage
–
Dekadrachm
Ancient Greek coinage
–
Tetradrachm
12.
Roman currency
–
Roman currency for most of Roman history consisted of gold, silver, bronze, orichalcum and copper coinage. From its introduction to the Republic, during the third century BC, well into Imperial times, Roman currency saw many changes in form, denomination, a persistent feature was the inflationary debasement and replacement of coins over the centuries. Notable examples of this followed the reforms of Diocletian and this trend continued into Byzantine times. The manufacture of coins in the Roman culture, dating from about the 4th century BC, the origin of the word mint is ascribed to the manufacture of silver coin at Rome in 269 BC at the temple of Juno Moneta. This goddess became the personification of money, and her name was applied both to money and to its place of manufacture, Roman mints were spread widely across the Empire, and were sometimes used for propaganda purposes. The populace often learned of a new Roman Emperor when coins appeared with the new Emperors portrait. The Romans cast their larger copper coins in clay moulds carrying distinctive markings, not because they knew nothing of striking, Roman adoption of metallic commodity money was a late development in monetary history. Bullion bars and ingots were used as money in Mesopotamia since the 7th millennium BC, coinage proper was only introduced by the Roman Republican government c.300 BC. For these reasons, the Romans would have known about coinage systems long before their government actually introduced them. The reason behind Romes adoption of coinage was likely cultural, the Romans had no pressing economic need, but they wanted to emulate Greek culture, and they considered the institution of minted money a significant feature of that culture. However, Roman coinage initially saw limited use. The type of money introduced by Rome was unlike that found elsewhere in the ancient Mediterranean and it combined a number of uncommon elements. One example is the large bronze bullion, the aes signatum and it measured about 160 by 90 millimetres and weighed around 1,500 to 1,600 grams, being made out of a highly leaded tin bronze. Although similar metal bars had been produced in Italy and northern Etruscan areas, these had been made of Aes grave. Along with the aes signatum, the Roman state also issued a series of bronze, produced using the manner of manufacture then utilised in Greek Naples, the designs of these early coins were also heavily influenced by Hellenic designs. The designs on the coinage of the Republican period displayed a solid conservatism, usually illustrating mythical scenes or personifications of various gods, in 27 BC, the Roman Republic came to an end as Augustus ascended to the throne as the first emperor. Taking autocratic power, it became recognized that there was a link between the emperors sovereignty and the production of coinage. The imagery on coins took an important step when Julius Caesar issued coins bearing his own portrait, while moneyers had earlier issued coins with portraits of ancestors, Caesars was the first Roman coinage to feature the portrait of a living individual
Roman currency
–
Denarius of
Marcus Aurelius.
Roman currency
–
Bronze aes signatum produced by the Roman Republic after 450 BC.
Roman currency
–
The most commonly used coin denominations and their relative sizes during Roman times.
Roman currency
–
Coins of the Roman Republic and Empire - from Cassell's History of England, Vol. I - anonymous author and artists
13.
Ancient Chinese coinage
–
Ancient Chinese coinage includes some of the earliest known coins. These coins, used as early as the Spring and Autumn period, the Spring and Autumn period also saw the introduction of the first metal coins, however, they were not initially round, instead being either knife shaped or spade shaped. Round metal coins with a round, and then later square hole in the center were first introduced around 350 BCE, the beginning of the Qin Dynasty, the first dynasty to unify China, saw the introduction of a standardised coinage for the whole Empire. Subsequent dynasties produced variations on these round coins throughout the imperial period, ancient Chinese coins are markedly different from coins produced in the west. Chinese coins were manufactured by being cast in molds, whereas western coins were cut and hammered or, in later times. Chinese coins were made from mixtures of metals such copper, tin and lead, from bronze, brass or iron, precious metals like gold. The ratios and purity of the coin metals varied considerably, most Chinese coins were produced with a square hole in the middle. This was used to allow collections of coins to be threaded on a rod so that the rough edges could be filed smooth. Official coin production was not always centralised, but could be spread over many mint locations throughout the country, aside from officially produced coins, private coining was common during many stages of history. Various steps were taken over time to try to combat the private coining and limit its effects, at other times private coining was tolerated. The coins varied in value throughout the history, some coins were produced in very large numbers – during the Western Han, an average of 220 million coins a year were produced. Other coins were of limited circulation and are extremely rare – only six examples of Da Quan Wu Qian from the Eastern Wu Dynasty are known to exist. Occasionally, large hoards of coins have been uncovered, the earliest coinage of China was described by Sima Qian, the great historian of c. While nothing is known about the use of shells as money, gold. They are not found in hoards, and the probability is that all these are in fact funerary items. Archaeological evidence shows that the earliest use of the spade and knife money was in the Spring, as in ancient Greece, socio-economic conditions at the time were favourable to the adoption of coinage. Inscriptions and archaeological evidence shows that cowrie shells were regarded as important objects of value in the Shang Dynasty, in the Zhou period, they are frequently referred to as gifts or rewards from kings and nobles to their subjects. Later imitations in bone, stone or bronze were used as money in some instances
Ancient Chinese coinage
–
Ancient Chinese coins
Ancient Chinese coinage
–
Gold coins marked with "Ying yuan". "Ying" being the name of the Chu capital.
Ancient Chinese coinage
–
Spade money
Ancient Chinese coinage
–
Sloping Shoulder money
14.
Coinage of India
–
Coins provide not only evidence of art and economy, but also a wisdom for understanding the history and politics of a nation. As a means of communication, they speak to the political, Coinage of India, issued by Imperial dynasties and Middle kingdoms began anywhere between 6th century BCE to 1st millennium BCE, and consisted mainly of copper and silver coins in its initial stage. Scholars remain divided over the origins of Indian coinage, cowry shells was first used in India as commodity money. In recent discoveries punched mark Mudras of stone have been found in lost city of Dwaraka, which is said to be existed at least 5,000 years ago. The Indus Valley Civilisation dates back between 2500 BC and 1750 BC, what is known, however, is that metal currency was minted in India well before the Mauryan Empire, and as radio carbon dating indicates, before the 5th century BCE. The practice of minted coins spread to the Indo-Gangetic Plain from West Asia, the coins of this period were called Puranas, Karshapanas or Pana. Mahajanapadas that minted their own coins included Gandhara, Kuntala, Kuru, Panchala, Shakya, Surasena, the tradition of Indian coinage was further influenced by the coming of Turkic and Mughal invaders in India. The East India Company introduced uniform coinage in the 19th century CE, and these coins were imitated by the modern nation states of Republic of India, Pakistan, Sri Lanka. Numismatics plays a role in determining certain period of Indian history. Punch-marked coins are a type of early Coinage of India, dating to between about the 6th and 2nd centuries BC. The first coins in India were minted around the 6th century BC by the Mahajanapadas of the Indo-Gangetic Plain, the coins of this period were punch-marked coins called Puranas, Karshapanas or Pana. Several of these coins had a symbol, for example, Saurashtra had a humped bull. These coins were made of silver of a weight but with an irregular shape. This was gained by cutting up silver bars and then making the weight by cutting the edges of the coin. They are mentioned in the Manu, Panini, and Buddhist Jataka stories, shurasena Surashtra Early coins of India were made of silver and copper, and bore animal and plant symbols on them. The Mauryan coins were marked with the royal standard to ascertain their authenticity. The Arthashastra, written by Kautilya, mentions minting of coins, Kautilya also seemed to advocate a theory of bimetallism for coinage, which involved the use of two metals, copper and silver, under one government. Punch marked coins were replaced at the fall of the Maurya Empire by cast, each individual coins was first cast by pouring a molten metal, usually copper or silver, into a cavity formed by two molds
Coinage of India
–
Silver punch mark coin of the
Maurya Empire, with symbols of wheel and elephant. 3rd century BCE.
Coinage of India
–
Silver coin of
Chandragupta II of
Gupta Empire, 400 CE
Coinage of India
–
Gold coins of
Chandragupta II of
Gupta Empire, 400 CE
Coinage of India
–
Queen Kumaradevi and King Chandragupta I on a coin of their son Samudragupta 3y50 380 CE.
15.
Achaemenid currency
–
Coins of the Achaemenid Empire were issued from 520 BCE-450 BCE to 330 BCE. It seems that before then, a continuation of Lydian coinage under Persian rule was highly likely, Achaemenid coinage includes the official imperial issues, as well as coins issued by the Achaemenid governors, such as those stationed in ancient Asia Minor. Darius first introduced a currency system at about 520-480, the precise period is debatable. The rate of exchange was 1 Daric =20 Siglos and it consisted of a Daric of between 8. 10-8.50 grams in weight and based on the Babylonian shekel of 8.33 grams. The purity was between 98-99% gold, after the capture of Babylon by Alexander, the Satrap Mazaeus issued the double Daric of 16.65 grams in weight whose image was based on the Daric coin and bore his name until his death in 328 BCE. 1 Daric =25 Attic Drachmae, Siglos is 5. 40-5.60 grams each, but is based on the 0.5 Lydian Siglos of 10. 73-10.92 grams for the full unit. Purity was at first issue 97-98% but by the middle 4th century was 94-95%,1 Siglos =7.5 Attic Obols Daric coins have been found in Asia Minor, Greece, Macedonia and Italy
Achaemenid currency
–
Silver
stater of
Pharnabazus as Satrap of
Cilicia (379-374 BCE), depicting a seated
Baaltars.
British Museum.
Achaemenid currency
–
Daric gold coin (c.490 BC)
Achaemenid currency
–
Dareikos - from an Italian translation of:
Eckhel
16.
Historical money of Tibet
–
The use of historical money in Tibet started in ancient times, when Tibet had no coined currency of its own. Bartering was common, gold was a medium of exchange, and shell money, a few coins from other countries were also occasionally in use. Coins were first used in an extensive way in the 17th century. There were however various difficulties with this system, in 1763/64 and 1785 the first silver coins were struck in Tibet. In 1792 the first mass-produced silver coins were created under joint Chinese, coins bearing Tibetan inscriptions only were subsequently replaced by issues which had Chinese and Tibetan legends. In 1840 purely Tibetan coinage was struck under Tibetan authority, in 1910 the Tibetan government started producing a large range of copper and silver coins of different denominations, and in 1918 to 1921, gold coins were struck. Tibetan banknotes were first issued in 1913, from 1955 to 1959 no more Tibetan coins were created, although banknotes were still being printed, and by 1959 all of the money was gradually being replaced with renminbi yuan. In ancient Tibet, the use of coins was insignificant, tibet’s main neighbours, India, Nepal and China had had their own coinage since time immemorial. Tibet had the biggest trade volume with China, the main items being horses from north-eastern Tibet. Tibet also exported medicinal herbs, stag antlers, musk and gold to China, and apart from tea, the trade volume with Tibets southern neighbours, India, Nepal and Bhutan, was much smaller. The Tibetan traders mainly exchanged salt and wool for grain with these countries, traditionally one measure of salt was traded for one measure of grain at the border with Nepal and India. Other, less important export goods were yak tails, musk, for the 17th century, the export of falcons to India is also recorded. For large transactions within Tibet, gold dust and Chinese silver ingots were used and these ingots came in different shapes, the most common kind resembled horseshoes or donkey shoes, and were named rta rmig ma in Tibetan. For small transactions, various consumer goods could be used, among others, these were areca nuts, tobacco, ceremonial scarves and tea Tea was usually traded in the form of tea bricks. This developed into the most important medium of exchange in the 19th century, so far there exists no consent whether these pieces could be regarded as coins. The officials had to convert these into the current monetary standard, lastly a form of gold currency named Sertam is mentioned which had a gold weight of 2 sewas. Fifteen Sertam corresponded to one standard Changsho, the currency unit Gursho was already mentioned by Sarat Chandra Das in his Tibetan-English Dictionary. According to this author 1 Gursho =24 sewas, Chinese silver ingots were used until the 20th century for larger transactions
Historical money of Tibet
–
Tibetan 1 srang silver coin, dated 15-43 (= AD 1909) obverse
Historical money of Tibet
–
Tibetan 1 srang silver coin, dated 15-43 (= AD 1909) reverse
Historical money of Tibet
Historical money of Tibet
–
kong par tangka dated 13-45 (= AD 1791),obverse
17.
History of Thai money
–
For Thai people, money was considered as the symbol of civilization. Money itself, reflected belief, faith in religion, culture, customs and traditions of each era and also act as a significant record in the development, the land which is now Thailand was once inhabited by various pre-historic communities. Therefore, these groups of people left a heritage of social culture, in the ancient days of Thai society, before money was created to serve as a medium of exchange, humans traded goods by bartering for products of similar value. However, many products differed in quality, and buyers and sellers differed in their assessments of value, to facilitate product sales, several mutually-agreed commodities came into use as mediums for exchange. The Indo-China Peninsula or “Suvarnabhumi” which means “Golden Peninsula” was the area on which Thailand is presently situated. These ancient kingdoms were a homeland for a variety of diverse races and tribes. They were the regions that were later on known as the Funan Kingdom, Dvaravati Kingdom, Srivijaya Kingdom and they used money as a “medium of exchange” which evolved into different forms of money. Funan was the most important region of Indo–China and became successful in trade during the 1st through 6th centuries. The Funan Kingdom was influenced by India, through trading and religion, the coinage used during that period bears marks symbolizing the monarchy and the religion, these were mostly flat and round coins made from silver. These coins display, on one side, a sun spreading rays between two rows of fish eggs. At the top of each coin the sign of the sun, with the decline of the Funan Kingdom, several kingdoms declared their freedom and independence. They alternated at being the dominant power in the area, including, the regions around the central Chao Phya River basin such as Nakhon Pathom, Rajburi, Supanburi etc. They had become the important cities and formed themselves into the kingdom known as the Kingdom of Dvaravati in the 6th century AD. The Dvaravati Kingdom produced many types of coins as a medium in trade and they revealed, through the designs on the coins, symbols of monarchy and the power of the state, the beliefs of Buddhism and the Bhramin religion. Samples are coins inscribed with the conch, the small conch, the rabbit on a lily leaf. On the reverse side is the Sriwatsa symbol flanked by mohout’s hooks, with the sun and moon on the top, in addition, there are flat coins on one side. On some of these coins appeared the features of Buranaklod, the Dhama wheel, on the reverse side of the coins are the ancient Sanskrit script. Around the 8th century, the Srivijaya Kingdom was “The land of Sea-faring Traders”, merchant ships stopped to seek shelter from the southern monsoons of the Malaysian Peninsula
History of Thai money
–
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History of Thai money
History of Thai money
History of Thai money
18.
Coining (mint)
–
In minting, coining or coinage is the process of manufacturing coins using a kind of stamping which is now generically known in metalworking as coining. This process is different from cast coinage, and can be classified in hammered coinage or hammering, a coin die is one of the two metallic pieces that are used to strike a coin, one per each side of the coin. A die contains a version of the image to be struck on the coin. Modern dies made out of hardened steel are capable of producing hundreds of thousands of coins before they are retired and defaced. Prior to the era, coin dies were manufactured individually by hand by artisans known as engravers. In demanding times, such as the crisis of the Roman Empire in the 3rd century, the die that was on the hammer side, usually the reverse, tended to wear out first. The planchets were usually hot prior to striking, on some Roman provincial coins, some believe the tongs used to move the heated planchet left permanent center indentations on the finished coins. Others attribute these marks to surfacing tools used as a part of planchet preparation, experimental archeology suggests that a lower die could be expected to last for up to 10,000 strikes depending on the level of wear deemed acceptable. Upper dies seem to have a far greater range of lives with usable lives ranging from just over 100 strikes to nearly 8000 being reported, combining archaeological evidence with historic records suggests ancient coin producers could get as many as 47,000 strikes out of an individual die. Medieval engravers were guild members who created coins, the vast majority of medieval coins were cold struck, the planchets were not heated. While medieval coin dies were made of iron, some dies have been discovered with a small region at the face of the die which is made of steel. As technology and the economy changed over the course of the Middle Ages, while most ancient coin dies used engraving very heavily, early medieval coinage was dominated by dies created mostly from punches, which displace the metal of the die instead of removing it. There is evidence of medieval die cutters using engraving tools to lay out designs, however, engraving on the face of the die did not become commonplace until the early Renaissance. Very detailed records exist for the Venetian mint, in the late Middle Ages, the dies used to create tornesellos lasted as follows, hammer die, ~17,000 strikes, anvil die,36,000 strikes. The mint made an average of 20,000 coins per day, so they were making one hammer die a day, the hammer dies wore out quicker because they tended to be smaller and were hit directly with a hammer, leading to severe mushrooming on the tops. First, an artist creates a large model of the coin. The plaster model is then coated with rubber, the rubber mold is then used to make an epoxy galvano. All of this place on a scale of around eight inches
Coining (mint)
–
700 Years City of Hall in Tyrol coin
19.
Milled coinage
–
In numismatics, the term milled coinage is used to describe coins which are produced by some form of machine, rather than by manually hammering coin blanks between two dies or casting coins from dies. Until 1550, coinage techniques used in European mints had not progressed from the coinage of Ancient Greece. This was problematic because an increase in the supply of bullion from central Europe and that led to low quality coins which were easily forged or clipped, i. e. precious metal was shaved from the edges of the coins. In accordance with Greshams law, the clipped and forged coins drove good coins out of circulation and this technology was significantly more advanced than the general manufacturing processes of the sixteenth century making the coins difficult to counterfeit. The negotiations which obtained rights to the process for France were so secret that the inventor was identified with a codename, but he was most likely Marx Schwab. Aubin Olivier went to Augsburg to learn the technique and Henry II of France made him chief engineer of a mint in Paris, called the Moulin des Étuves. This mint produced well-struck and perfectly round gold and silver coins, in England, a 1560 proclamation of Elizabeth I exchanged old debased coins for new pure coins. The Tower Mint added machinery to its hammering for this “great recoinage”, eloy Mestrelle did the technology transfer from France but when the great recoinage ended mint authorities found him redundant and in 1578 he was hanged for counterfeiting. Yet another Frenchman, Peter Blondeau, provided machinery for a proposed coinage designed by Thomas Simon with Oliver Cromwell’s portrait, the restoration of 1660 ended that, but in 1662 Charles II recalled Blondeau to establish a permanent machine made coinage. He employed a secret process for placing lettering or other designs on the edges of coins, the inscription chosen for the edge—DECVS ET TVTAMEN, meaning an ornament and a safeguard—refers to the protection against clipping which the lettered edge provided. In accordance with Gresham’s law, however, the inferior hammered coins limited the circulation of his coins until the coins were demonetized in 1695. Meanwhile, in continental Europe, France readopted machine made coins in 1639, both machine made and hammered coins continued through the recoinage of French silver in 1641, but this time machine made coinage’s time had come and hammered French coinage ended in 1645. Zurich and Heidelberg experimented with coinage machinery in 1558 and 1567 respectively, unlike the screw press used in France and England, Hall used a roller press. Here two cylindrical dies impressed designs on bullion which rolled between them, coins were then cut from the rolled and impressed metal. This technique spread from Hall to Cologne in 1568, Dresden in 1574, Kremnica in 1577, Danzig in 1577, and other small mints. Its most significant impact occurred when Philip II of Spain used his funds to build a mint at Segovia which used this technique to convert silver from the Americas to coins efficiently. This allowed the king to pay his debts at a better rate than he otherwise could, the Segovia mint was owned by the King’s Royal House but other Spanish mints, which were run by the National Treasury, continued hammered coinage for decades. The Industrial Revolution shifted the focus of the economy from a rural to an urban, money based, the main technology of the Industrial Revolution, the Watt steam engine, also increased the overall level of economic activity
Milled coinage
–
A mill for the production of 'milled' coins with both coin dies illustrated.
Milled coinage
–
A mill for inscribing or milling the edges of coin flans or planchets.
Milled coinage
–
French-made coining press from 1831 (
M.A.N.,
Madrid)
20.
Hammered coinage
–
Hammered coins were produced by placing a blank piece of metal of the correct weight between two dies, and then striking the upper die with a hammer to produce the required image on both sides. The planchet was usually cast from a mold, the bottom die was usually counter sunk in a log or other sturdy surface and was called a pile. One of the held the die for the other side. Experimental archeology suggests that a lower die could be expected to last for up to 10,000 strikes depending on the level of wear deemed acceptable. Upper dies seem to have a far greater range of lives with usable lives ranging from just over 100 strikes to nearly 8000 being reported, combining archaeological evidence with historic records suggests ancient coin producers could get as many as 47,000 strikes out of an individual die. In later history, in order to increase the production of coins, hammered coins were produced from strips of metal of the correct thickness. Both methods of producing hammered coins meant that it was difficult to produce coins of a regular diameter, coins were liable to suffer from clipping where unscrupulous people would remove slivers of precious metal since it was difficult to determine the correct diameter of the coin. Coins were also vulnerable to sweating, which is silver coins would be placed in a bag that would be vigorously shaken. This would produce silver dust, which could later be removed from the bag, the ability to fashion coins from machines caused hammered coins to become gradually obsolete during the 17th century. They were still made in Venice until the 1770s, france became the first country to adopt a full machine-made coin in 1643. An alternative method of producing early coins, particularly found in Asia and this method of coin production continued in China into the nineteenth century. Up to a couple of coins could be produced at one time from a single mold, when a tree of coins would be produced
Hammered coinage
–
Striking coins: wall relief at
Rostock
Hammered coinage
–
A furnace for producing molten metal for coin production.
Hammered coinage
–
A trussell for use with a pile in the production of hammered coins as shown by the moneyer at work.
Hammered coinage
–
An anvil die as used for minting hammered coins.
21.
Cast coinage
–
Cast coinage refers to coins made by pouring melted metal into a mold, i. e. casting. It has been used for coins, particularly in the Far East. The method differs from the current mode of production, which is done by striking coin blanks that have been cut out of metal sheets. The method has also used by forgers. Traditional Far Eastern cast coins—so-called cash coins—are the most famous example of cast coinage, and were issued from the 4th century BC until circa 1912, predominantly in bronze, brass or iron. Traditional Far Eastern coins were generally cast base metal coins, although silver and gold bars were manufactured, e. g. Chinese sycee, Japanese obans and kobans. Cast potins circulated in Kent from around 100 BC to around 50 BC, at a point during the first century of the Christian era, cast bronze coins were produced in Dorset with archaeological evidence pointing towards Hengistbury Head as the source. By AD200, cast copies of silver denarii were being produced in a number of areas of Britain, while these may have been straightforward forgeries the context in which some of the moulds have been found suggest there may have been at least some elements of semi officialdom
Cast coinage
–
Numismatics
22.
Exonumia
–
Exonumia are numismatic items other than coins and paper money. This includes Good For tokens, badges, counterstamped coins, elongated coins, encased coins, souvenir medallions, tags, wooden nickels and it is related to numismatics, and many coin collectors are also exonumists. Besides the above definition, others extend it to include non-coins which may or may not be legal tenders such as cheques, credit cards. These can also be considered notaphily or scripophily, the noun exonumia is derived from two classical roots, exo, meaning out-of in Greek, and nummus, meaning coin in Latin, thus, out-of-coins. Usually, the term exonumia is applied to objects in the United States. The words exonumist and exonumia were coined in July 1960 by Russell Rulau, an authority and author on the subject. Chronologically, in the United States many Exonumia items were used as currency when actual money was not easily available in the economy, a notable exception to this definition are Medals, which were generally not used as currency or exchange. See the for clarification section below for distinctions between various branches of exonumia, Tokens were used both to advertise and to facilitate commerce. Token authority Russell Rulau offers a definition for exonumia. For example, an advertising token may also be considered a medal, Good For tokens may also advertise. Counterstamped coins have been called “little billboards. ”Strictly, exonumia is anything not a governmental issue coin and this could almost mean anything coin-like. The English term Para-numismatica, or alongside currency, appears more limiting, hinting that tokens must have some sort of “value” or monetary usage, one definition of Para-numismatica is anything coin-like but not a coin. In America this is not the accepted usage, rulaus 1040 page tome, UNITED STATES TOKENS, 1700-1900 includes many tokens without any monetary value depicted on the token. While he included many items, some types of exonumia were not included just so the book would not get any bigger, the following groupings of categories are continually expanding. One way of parsing tokens is into three general categories, Has a ‘value, ’ facilitating commerce, such as Good For Something. Commemoration, remembrance, dedication, or the like, for person, place. Typically catalogs of tokens are organized by location, time period and/or type of item, historically the need for tokens grew out of the need for currency. In America some tokens legally circulated alongside or instead of currency up until recently, hard Times Tokens and Civil War Tokens each were the size of the contemporary cent
Exonumia
–
A Smokey Bear Geocoin
Exonumia
–
Obverse of a
communion token from
South Leith Parish Church
Exonumia
–
A Great Western
Railway pay cheque
Exonumia
–
Copper trade token of Durfee & Peck, Indian traders on Missouri River in various locations, circa 1869
23.
Credit card
–
The card issuer creates a revolving account and grants a line of credit to the cardholder, from which the cardholder can borrow money for payment to a merchant or as a cash advance. A credit card is different from a card, where it requires the balance to be repaid in full each month. In contrast, credit cards allow the consumers a continuing balance of debt, a credit card also differs from a cash card, which can be used like currency by the owner of the card. Credit cards have a printed or embossed bank card number complying with the ISO/IEC7812 numbering standard, the card numbers prefix, called the Bank Identification Number, is the sequence of digits at the beginning of the number that determine the bank to which a credit card number belongs. This is the first six digits for MasterCard and Visa cards, the next nine digits are the individual account number, and the final digit is a validity check code. Both of these standards are maintained and further developed by ISO/IEC JTC 1/SC 17/WG1, Credit cards have a magnetic stripe conforming to the ISO/IEC7813. Many modern credit cards have a chip embedded in them as a security feature. In addition to the credit card number, credit cards also carry issue and expiration dates, as well as extra codes such as issue numbers. Not all credit cards have the sets of extra codes nor do they use the same number of digits. The concept of using a card for purchases was described in 1887 by Edward Bellamy in his utopian novel Looking Backward. Bellamy used the credit card eleven times in this novel, although this referred to a card for spending a citizens dividend from the government. Charge coins and other items were used from the late 19th century to the 1930s. They came in various shapes and sizes, with materials made out of celluloid, copper, aluminum, steel, each charge coin usually had a little hole, enabling it to be put in a key ring, like a key. These charge coins were given to customers who had charge accounts in department stores, hotels. A charge coin usually had the account number along with the merchants name. The charge coin offered a simple and fast way to copy a charge account number to the sales slip and this sped the process of copying, previously done by handwriting. It also reduced the number of errors, by having a form of numbers on the sales slip. Because the customers name was not on the coin, almost anyone could use it
Credit card
–
Visa,
Master Card,
American Express
Credit card
Credit card
–
An example of street markets accepting credit cards. Most simply display the
acceptance marks (stylized logos, shown in the upper-left corner of the sign) of all the cards they accept.
24.
Medal
–
A medal may be awarded to a person or organization as a form of recognition for sporting, military, scientific, academic, or various other achievements. Military awards and decorations are more precise terms for types of state decoration. Medals may also be created for sale to commemorate particular individuals or events, an artist who creates medals or medallions is called a medallist or medalist. There are also devotional medals which may be worn for religious reasons, Medals have long been popular collectible items either as a variety of exonumia or of militaria. Medallions may also be called table medals because they are too large to be worn and can only be displayed on a wall, table top, desk, the word medallion has the same ultimate derivation, but this time through the Italian medaglione, meaning large medal. The main or front surface of a medal is termed the obverse, the reverse, or back surface of the medal, is not always used and may be left blank or may contain a secondary design. It is not uncommon to only an artistic rendering on the obverse, while all details. The rim is only occasionally employed to display an inscription such as a motto, privy mark, engraver symbol, assayer’s marking. Medals that are intended to be hung from a ribbon also include a suspension piece at the crest with which to loop a suspension ring through. It is through the ring that a ribbon is run or folded so the medal may hang pendent, Medals pinned to the breast use only a small cut of ribbon that is attached to a top bar where the brooch pin is affixed. Top bars may be hidden under the ribbon so they are not visible, be a device from which the ribbon attaches. Some top bars are elaborate and contain a whole design unto themselves, Medals that are made with inexpensive material might be gilded, silver-plated, chased, or finished in a variety of other ways to improve their appearance. Medals have also made of rock, gemstone, ivory, glass, porcelain, terra cotta, coal, wood, paper, enamel, lacquerware. Honorary awards, as a button, which it is custom to give the kings kinsmen. Roman emperors used both military awards of medals, and political gifts of medallions that were very large coins, usually in gold or silver. Both these and actual golden coins were often set as pieces of jewellery, the bracteate is a type of thin gold medal, usually plain on the reverse, found in Northern Europe from the so-called Dark Ages or Migration Period. They often have suspension loops and were intended to be worn on a chain as jewellery. They imitate, at a distance, Roman imperial coins and medallions, the surviving example is mounted for wearing as jewellery
Medal
–
Obverse of medal distributed by
Cecilia Gonzaga 's family to political allies, a common practice in
Renaissance Europe. Designed by
Pisanello in 1447.
Medal
–
Reverse of the same medal, this copy with a suspension hole added later (inside a crescent moon in the design).
Medal
–
Various prize medals with obverse designs, suspension rings and ribbons typical of medals intended to be draped over the head and hung from the neck
Medal
–
Bronze medal of
Isabella d'Este, princess and patron of
Renaissance humanists, distributed as a gift.
25.
Token coin
–
In the study of numismatics, a token coin or trade token is a small, flat, round piece of metal or plastic that can sometimes be used instead of money in coins. The field of tokens is part of exonumia and token coins are token money, Tokens either have a denomination shown or implied by size, color or shape. Tokens are often made of metals, copper, pewter, aluminium, brass and tin were commonly used, while bakelite, leather, porcelain. In the case of currency issued by a company but also recognized by the state there is a convergence between tokens and currency. In their purest form, currency tokens issued by a crossed the boundary of merely being trade tokens when they were sanctioned by the local government authority. This was sometimes a measure resulting from a shortage of money or the governments inability to issue its own coinage. In effect, the organization behind the tokens became the regional bank, a classic example of this is the Strachan and Co trade tokens of East Griqualand in South Africa which were used as currency by the indigenous people in the region from 1874. Their initial success resulted from the scarcity of small change in this region from that time. Similarly, in times of inflation, tokens have sometimes taken on a currency role. An example of this is Italian or Israeli telephone tokens, which were good for the same service even as prices increased. New York City Subway tokens were also accepted sometimes in trade, or even in parking meters, coin-like objects from the Roman Empire called spintria have been interpreted as a form of early tokens. Their functions are not known from history, but they appear to have been brothel tokens or possibly gaming tokens. Medieval English monasteries issued tokens to pay for services from outsiders and these tokens circulated in nearby villages where they were called Abbots money. Also, counters called jetons were used as small change without official blessing, the token was in effect a pledge redeemable in goods but not necessarily for currency. These tokens never received official sanction from government but were accepted and circulated quite widely and this shortage was felt more keenly because of the rapid growth of trade in the towns and cities, and this in turn prompted both local authorities and merchants to issue tokens. These tokens were most commonly made of copper or brass, but pewter, lead, most were not given a specific denomination and were intended to pass as farthings, but there are also a large number of halfpenny and sometimes penny tokens. Halfpenny and penny tokens usually, but not always, bear the denomination on their face, most such tokens indicate the name of their issuer, which might either be his or her full name or initials. Where initials were provided, it was practice to provide three—one for the surname
Token coin
–
A rare and historic
Bechuanaland Border Police canteen token (1893)
Token coin
–
The first set of Strachan and Co currency tokens—recognized as South Africa's first indigenous currency
Token coin
–
Brass trade token from
Fort Laramie, Dakota Territory
Token coin
–
Show World Center token, New York City, c. 1990
26.
Cheque
–
A cheque or check is a document that orders a bank to pay a specific amount of money from a persons account to the person in whose name the cheque has been issued. The person writing the cheque, the drawer, has a banking account where their money is held. Cheques are a type of bill of exchange and were developed as a way to make payments without the need to carry large amounts of money, both the drawer and payee may be natural persons or legal entities. Cheques are order instruments, and are not in general payable simply to the bearer as bearer instruments are, in some countries, such as the US, the payee may endorse the cheque, allowing them to specify a third party to whom it should be paid. By the second half of the 20th century, as cheque processing became automated, billions of cheques were issued annually, since then cheque usage has fallen, being partly replaced by electronic payment systems. In an increasing number of countries cheques have either become a marginal payment system or have been phased out. The spellings check, checque, and cheque were used interchangeably from the 17th century until the 20th century, in American English, the usual spelling for both is check. The cheque had its origins in the ancient banking system, in which bankers would issue orders at the request of their customers, such an order was referred to as a bill of exchange. The use of bills of exchange facilitated trade by eliminating the need for merchants to carry large quantities of currency to purchase goods, the ancient Romans are believed to have used an early form of cheque known as praescriptiones in the 1st century BC. Muslim traders are known to have used the cheque or ṣakk system since the time of Harun al-Rashid of the Abbasid Caliphate, transporting a paper saqq was more secure than transporting money. In the 9th century, a merchant in country A could cash a saqq drawn on his bank in country B. In the 13th century in Venice the bill of exchange was developed as a device to allow international trade without the need to carry large amounts of gold. Their use subsequently spread to other European countries, in the early 1500s in the Dutch Republic, to protect large accumulations of cash, people began depositing their money with cashiers. These cashiers held the money for a fee, competition drove cashiers to offer additional services including paying money to any person bearing a written order from a depositor to do so. They kept the note as proof of payment and this concept went on to spread to England and elsewhere. By the 17th century, bills of exchange were being used for payments in England. Cheques, a type of bill of exchange, then began to evolve, initially they were called drawn notes, because they enabled a customer to draw on the funds that he or she had in the account with a bank and required immediate payment. These were handwritten, and one of the earliest known still to be in existence was drawn on Messrs Morris and Clayton, scriveners and bankers based in the City of London, in 1717, the Bank of England pioneered the first use of a pre-printed form
Cheque
–
A cheque with
Thomas Jefferson as payee and payor from 1809
Cheque
–
A cheque from 1905
Cheque
–
A cheque from 1933
Cheque
–
An English cheque from 1956 having a bank clerk's red mark verifying the signature, a two-pence stamp duty, and holes punched by hand to cancel it. This is a "crossed cheque" disallowing transfer of payment to another account.
27.
Notaphily
–
Notaphily is the study and collection of paper currency, and banknotes. A notaphilist is a collector of banknotes or paper money, particularly as a hobby and it is believed that people have been collecting paper money for as long as it has been in use. While people began collecting paper currency more systematically in the 1940s, the term was devised in this decade by a group of employees working for the collectors and investments firm Stanley Gibbons, in a successful attempt to formalise and encourage interest in the area. In 1961, The International Bank Note Society, was formed as an association of banknote collectors. Nowadays it has thousands of members from around the world, the IBNS publishes the quarterly IBNS Journal, holds regular mail bid auctions, and promotes lectures at congresses. Almost every note of every country and many special and regional issues are cataloged following a format for each entry. An important aspect of collecting banknotes is the condition of items, banknotes in perfect condition, that usually havent circulated are rated as uncirculated and that is the highest classification for a value that a banknote can have. In addition to that, the value for a note in the world paper money catalog is listed for UNC condition. Banknotes are usually graded on a scale of grades. These grades vary somewhat internationally, and as time goes on more grades have been added. e, a light center fold, without rounded corners. Extremely fine - a banknote with one crease or up to three light folds, Paper still bright and attractive, very slight wear to corners allowed. Very Fine - Note still attractive, but possible slight dirt or smudging, no tears, but slight wear to edges and corners is allowable. Fine - Paper is now slightly soft, considerable wear due to folds from use in circulation, minor tears to note, not extending into the design. Clear but not bright in appearance, staple holes but not holes due to folding. Tears can extend into the design, hole at center caused by folding allowable. Good - Very much wear, as VG, but more so, small pieces of the note may be missing Fair - Larger pieces of note torn off/missing, compared with G. Poor - Severe damage due to wear, staining, missing pieces, may be taped together, have pieces missing. In addition to grades, it is common to indicate an in-between grade, such as AU-UNC
Notaphily
–
A banknote from the former
Yugoslavia which is identified as Yugoslavia P-105.
28.
Scripophily
–
Scripophily is the study and collection of stock and bond certificates. A specialized field of numismatics, scripophily is an area of collecting due to both the inherent beauty of some documents as well as the interesting historical context of each document. Some stock certificates are excellent examples of engraving, occasionally, an old stock certificate will be found that still has value as a stock in a successor company. Scripophily, the collecting of old stocks and bonds, gained recognition as a hobby around 1970, the word scripophily was coined by combining words from English and Greek. The word scrip represents an ownership right and the word means to love. Today, there are thousands of collectors worldwide in search of scarce, rare, collectors who come from a variety of businesses enjoy this as a hobby, although there are many who also consider scripophily a good investment. Many collectors like the significance of old certificates. Others prefer the beauty of older stocks and bonds that were printed in colors with fancy artwork. In recent times, Dot com companies and scandals have been particularly popular issuances, a recent addition to the hobby is collecting real, live shares issued in ones name. Common companies that issue stock certificates include Walt Disney, Harley-Davidson, McDonalds, Starbucks, Google, Ford Motors, Coca-Cola, again, framing is a popular option for these shares. Many autograph collectors are found in field, looking for signed certificates from John D. A large part of scripophily is the area of financial history, over the years there have been millions of companies which needed to raise money for their business. In order to do so, the founders of these companies issued securities, generally speaking, they either issued an equity security in the form of stock or a debt security in the form of a bond. However, there are varieties of equity and debt instruments. They can be common stock, preferred stock, warrants, cumulative preferred stocks, bonds, zero-coupon bonds, long term bonds, each certificate is a piece of history about a company and its business. Some companies became major successes, while others were acquired and merged with other companies, Some companies and industries were successful until they were replaced by new technologies. Some companies have been the center of scandal or fraud, a lot of companies either were never successful or went bankrupt, so that their certificates became worthless pieces of paper until the hobby of scripophily began. Today, more stocks and bonds are issued electronically, meaning fewer paper certificates are issued as a percentage of stock issued
Scripophily
–
Ezekiel Air Ship stock certificate
Scripophily
–
Columbia Pictures
Scripophily
–
Baltimore and Ohio Railroad
Scripophily
–
H. J. Heinz Company
29.
Stock
–
The stock of a corporation is constituted of the equity stock of its owners. A single share of the stock represents fractional ownership of the corporation in proportion to the number of shares. In liquidation, the stock represents the residual assets of the company that would be due to stockholders after discharge of all senior claims such as secured and unsecured debt. Stockholders equity cannot be withdrawn from the company in a way that is intended to be detrimental to the companys creditors, the stock of a corporation is partitioned into shares, the total of which are stated at the time of business formation. Additional shares may subsequently be authorized by the shareholders and issued by the company. In some jurisdictions, each share of stock has a certain declared par value, in other jurisdictions, however, shares of stock may be issued without associated par value. Shares represent a fraction of ownership in a business, a business may declare different types of shares, each having distinctive ownership rules, privileges, or share values. Ownership of shares may be documented by issuance of a stock certificate. A stock certificate is a document that specifies the amount of shares owned by the shareholder. Stock typically takes the form of shares of common stock or preferred stock. As a unit of ownership, common stock typically carries voting rights that can be exercised in corporate decisions, shares of such stock are called convertible preferred shares. New equity issue may have specific legal clauses attached that differentiate them from previous issues of the issuer. Some shares of stock may be issued without the typical voting rights, for instance, or some shares may have special rights unique to them. Often, new issues that have not been registered with a governing body may be restricted from resale for certain periods of time. Preferred stock may be hybrid by having the qualities of bonds of fixed returns and they also have preference in the payment of dividends over common stock and also have been given preference at the time of liquidation over common stock. They have other features of accumulation in dividend, Rule 144 Stock is an American term given to shares of stock subject to SEC Rule 144, Selling Restricted and Control Securities. Under Rule 144, restricted and controlled securities are acquired in unregistered form, investors either purchase or take ownership of these securities through private sales from the issuing company or from an affiliate of the issuer. Investors wishing to sell these securities are subject to different rules than those selling traditional common or preferred stock and these individuals will only be allowed to liquidate their securities after meeting the specific conditions set forth by SEC Rule 144
Stock
–
Financial markets
Stock
–
One of the earliest stock by
VOC
Stock
–
Stock certificate for ten shares of the
Baltimore and Ohio Railroad Company
Stock
–
A stockbroker using multiple screens to stay up to date on trading.
30.
Bond (finance)
–
In finance, a bond is an instrument of indebtedness of the bond issuer to the holders. The most common types of bonds include municipal bonds and corporate bonds, interest is usually payable at fixed intervals. Very often the bond is negotiable, that is, the ownership of the instrument can be transferred in the secondary market and this means that once the transfer agents at the bank medallion stamp the bond, it is highly liquid on the second market. Thus, a bond is a form of loan or IOU, the holder of the bond is the lender, the issuer of the bond is the borrower, and the coupon is the interest. Bonds provide the borrower with funds to finance long-term investments, or, in the case of government bonds. Certificates of deposit or short term commercial paper are considered to be money market instruments and not bonds, the main difference is in the length of the term of the instrument. Bonds and stocks are both securities, but the difference between the two is that stockholders have an equity stake in the company, whereas bondholders have a creditor stake in the company. Being a creditor, bondholders have priority over stockholders and this means they will be repaid in advance of stockholders, but will rank behind secured creditors in the event of bankruptcy. Another difference is that usually have a defined term, or maturity, after which the bond is redeemed. An exception is a bond, such as a consol, which is a perpetuity, that is. Bonds are issued by authorities, credit institutions, companies. The most common process for issuing bonds is through underwriting, when a bond issue is underwritten, one or more securities firms or banks, forming a syndicate, buy the entire issue of bonds from the issuer and re-sell them to investors. The security firm takes the risk of being unable to sell on the issue to end investors. Primary issuance is arranged by bookrunners who arrange the bond issue, have contact with investors and act as advisers to the bond issuer in terms of timing. The bookrunner is listed first among all participating in the issuance in the tombstone ads commonly used to announce bonds to the public. The bookrunners willingness to underwrite must be discussed prior to any decision on the terms of the issue as there may be limited demand for the bonds. In contrast, government bonds are issued in an auction. In some cases, both members of the public and banks may bid for bonds, in other cases, only market makers may bid for bonds
Bond (finance)
–
Securities
Bond (finance)
–
Bond certificate for the state of South Carolina issued in 1873 under the state's Consolidation Act.
Bond (finance)
–
Railroad obligation Moscow-Kiev-Voronezh
Bond (finance)
–
Receipt for temporary bonds for the state of Kansas issued in 1922
31.
Glossary of numismatics
–
This article is a collection of Numismatic and coin collecting terms with concise explanation for the beginner or professional. Numismatics is the study of money and its history in all its varied forms. While numismatists are often characterized as studying coins, the discipline includes the study of banknotes, stock certificates, medals, medallions. Sub-fields or related fields of numismatics are, Exonumia, is the study of objects such as token coins and medals. Notaphily, is the study of money or banknotes. Scripophily, is the study and collection of stocks and bonds, adjustment The filing down of a blank to the correct weight before striking, shown by file marks. File marks are still visible on the surface of a coin even after being struck. Alliance coinage Coins minted by two or more state governments in conjunction, the Euro coins would be an example of this. Alloy Homogeneous mixture of two or more elements, where the compound has metallic properties. Common coin alloys include cupro-nickel and bronze, altered Date False date put on a coin to defraud collectors, usually to make it appear more valuable. Such alterations are often spotted with the aid of a magnifying glass. Anepigraphic coin Coin without an inscription, many ancient coins used only a simple picture of an animal to show value or weight. Annealing Process of heating and cooling metal in order to relieve stresses and this is often done with coin blanks to make the metal less brittle before striking. Assay Test to ascertain the weight and purity of a coin, attribution Identifier of a coin such as date, mint, denomination, or variety. Bag Mark Surface mark, or nick, on a coin usually from contact with other coins in a mint bag, more often seen on large gold or silver coins. Bankers Mark A small countermark applied to a coin by a bank or a trader indicating that they consider the coin to be genuine and of legal weight. Most often found on ancient and medieval coins, but also on coins which circulated in China and Japan. Base metal Non-precious metal or alloy containing no gold or silver, common base metals used in coinage include nickel and copper
Glossary of numismatics
–
Example of extreme doubling on the date of a coin
Glossary of numismatics
–
Regular coin, Essai (Pattern) and Piedfort
Glossary of numismatics
–
A rare and historic
Bechuanaland Border Police canteen token.
32.
Switzerland
–
Switzerland, officially the Swiss Confederation, is a federal republic in Europe. It consists of 26 cantons, and the city of Bern is the seat of the federal authorities. The country is situated in western-Central Europe, and is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland is a country geographically divided between the Alps, the Swiss Plateau and the Jura, spanning an area of 41,285 km2. The establishment of the Old Swiss Confederacy dates to the medieval period, resulting from a series of military successes against Austria. Swiss independence from the Holy Roman Empire was formally recognized in the Peace of Westphalia in 1648. The country has a history of armed neutrality going back to the Reformation, it has not been in a state of war internationally since 1815, nevertheless, it pursues an active foreign policy and is frequently involved in peace-building processes around the world. In addition to being the birthplace of the Red Cross, Switzerland is home to international organisations. On the European level, it is a member of the European Free Trade Association. However, it participates in the Schengen Area and the European Single Market through bilateral treaties, spanning the intersection of Germanic and Romance Europe, Switzerland comprises four main linguistic and cultural regions, German, French, Italian and Romansh. Due to its diversity, Switzerland is known by a variety of native names, Schweiz, Suisse, Svizzera. On coins and stamps, Latin is used instead of the four living languages, Switzerland is one of the most developed countries in the world, with the highest nominal wealth per adult and the eighth-highest per capita gross domestic product according to the IMF. Zürich and Geneva have each been ranked among the top cities in the world in terms of quality of life, with the former ranked second globally, according to Mercer. The English name Switzerland is a compound containing Switzer, a term for the Swiss. The English adjective Swiss is a loan from French Suisse, also in use since the 16th century. The name Switzer is from the Alemannic Schwiizer, in origin an inhabitant of Schwyz and its associated territory, the Swiss began to adopt the name for themselves after the Swabian War of 1499, used alongside the term for Confederates, Eidgenossen, used since the 14th century. The data code for Switzerland, CH, is derived from Latin Confoederatio Helvetica. The toponym Schwyz itself was first attested in 972, as Old High German Suittes, ultimately related to swedan ‘to burn’
Switzerland
–
Founded in 44 BC by
Lucius Munatius Plancus,
Augusta Raurica was the first Roman settlement on the Rhine and is now among the most important archaeological sites in Switzerland.
Switzerland
–
Flag
Switzerland
–
The 1291 Bundesbrief (Federal charter)
Switzerland
–
The Old Swiss Confederacy from 1291 (dark green) to the sixteenth century (light green) and its associates (blue). In the other colors are shown the subject territories.
33.
Coins of the Swiss franc
–
The coins of the Swiss franc are the official coins used in Switzerland and Liechtenstein. The name of the subunit is Centime in French, Rappen in German, Centisimo in Italian, there are coins in denominations of 5 centimes,10 centimes,20 centimes, ½ franc,1 franc,2 francs and 5 francs. In the past, there were also coins of 1 and 2 centimes, the countrys name is on all the coins as Confoederatio Helvetica, the Latin name of the Swiss Confederation, or Helvetia specified. The oldest Swiss coins valid today are the 10 centime coins dating back to 1879 and they are therefore among the world’s oldest coins still valid today. To date, they have the design and the same alloy. Until 1967, the coins with face values of ½ franc to 5 francs were of silver alloy. These were withdrawn because the price of silver alloy exceeded the face value, the 2-centime coins were made invalid in 1978, and 1-centime coins were made invalid in 2007, long after they had fallen out of daily use. Since 2004, moreover, the existing pure nickel 20 centime coins of the years 1881–1938 have been withdrawn from circulation because machines cannot detect them, today, all the coins except the 5 centime coin are in a copper nickel alloy. Seven coins are currently in circulation, Swiss franc Rappen Vreneli Banknotes of the Swiss franc Swissmint Banknotes and coins Swiss coins
Coins of the Swiss franc
–
The current series.
Coins of the Swiss franc
–
A ten-cent coin from 1879.
Coins of the Swiss franc
–
5 Rappen
Coins of the Swiss franc
–
10 Rappen
34.
Metal
–
A metal is a material that is typically hard, opaque, shiny, and has good electrical and thermal conductivity. Metals are generally malleable—that is, they can be hammered or pressed permanently out of shape without breaking or cracking—as well as fusible and ductile, about 91 of the 118 elements in the periodic table are metals, the others are nonmetals or metalloids. Some elements appear in both metallic and non-metallic forms, astrophysicists use the term metal to collectively describe all elements other than hydrogen and helium, the simplest two, in a star. The star fuses smaller atoms, mostly hydrogen and helium, to larger ones over its lifetime. In that sense, the metallicity of an object is the proportion of its matter made up of all chemical elements. Many elements and compounds that are not normally classified as metals become metallic under high pressures, the atoms of metallic substances are typically arranged in one of three common crystal structures, namely body-centered cubic, face-centered cubic, and hexagonal close-packed. In bcc, each atom is positioned at the center of a cube of eight others, in fcc and hcp, each atom is surrounded by twelve others, but the stacking of the layers differs. Some metals adopt different structures depending on the temperature, atoms of metals readily lose their outer shell electrons, resulting in a free flowing cloud of electrons within their otherwise solid arrangement. This provides the ability of metallic substances to easily transmit heat, while this flow of electrons occurs, the solid characteristic of the metal is produced by electrostatic interactions between each atom and the electron cloud. This type of bond is called a metallic bond, Metals are usually inclined to form cations through electron loss, reacting with oxygen in the air to form oxides over various timescales. Examples,4 Na + O2 →2 Na2O2 Ca + O2 →2 CaO4 Al +3 O2 →2 Al2O3, the transition metals are slower to oxidize because they form a passivating layer of oxide that protects the interior. Others, like palladium, platinum and gold, do not react with the atmosphere at all, some metals form a barrier layer of oxide on their surface which cannot be penetrated by further oxygen molecules and thus retain their shiny appearance and good conductivity for many decades. The oxides of metals are generally basic, as opposed to those of nonmetals, exceptions are largely oxides with very high oxidation states such as CrO3, Mn2O7, and OsO4, which have strictly acidic reactions. Painting, anodizing or plating metals are good ways to prevent their corrosion, however, a more reactive metal in the electrochemical series must be chosen for coating, especially when chipping of the coating is expected. Water and the two form an electrochemical cell, and if the coating is less reactive than the coatee. Metals in general have high conductivity, high thermal conductivity. Typically they are malleable and ductile, deforming under stress without cleaving, in terms of optical properties, metals are shiny and lustrous. Sheets of metal beyond a few micrometres in thickness appear opaque, although most metals have higher densities than most nonmetals, there is wide variation in their densities, lithium being the least dense solid element and osmium the densest
Metal
–
Gallium crystals
Metal
–
Hot metal work from a
blacksmith.
Metal
–
Zinc, a base metal, reacting with an acid
Metal
–
A gold nugget
35.
Plastic
–
Plastic is a material consisting of any of a wide range of synthetic or semi-synthetic organic compounds that are malleable and can be molded into solid objects. Plastics are typically organic polymers of high mass, but they often contain other substances. They are usually synthetic, most commonly derived from petrochemicals, due to their relatively low cost, ease of manufacture, versatility, and imperviousness to water, plastics are used in an enormous and expanding range of products, from paper clips to spaceships. They have already displaced many traditional materials, such as wood, stone, horn and bone, leather, paper, metal, glass, and ceramic, in most of their former uses. In developed countries, about a third of plastic is used in packaging, other uses include automobiles, furniture, and toys. In the developing world, the ratios may be different - for example, the worlds first fully synthetic plastic was bakelite, invented in New York in 1907 by Leo Baekeland who coined the term plastics. Toward the end of the century, one approach to this problem was met with wide efforts toward recycling, the word plastic is derived from the Greek πλαστικός meaning capable of being shaped or molded, from πλαστός meaning molded. The common word plastic should not be confused with the technical adjective plastic, used for insulating parts in electrical fixtures, paper laminated products, thermally insulation foams. Problems include the probability of moldings naturally being dark colors, One of the most expensive commercial polymers. It forms the basis of artistic and commercial acrylic paints when suspended in water with the use of other agents, polytetrafluoroethylene – Heat-resistant, low-friction coatings, used in things like non-stick surfaces for frying pans, plumbers tape and water slides. It is more known as Teflon. Urea-formaldehyde – One of the aminoplasts and used as an alternative to phenolics. Used as an adhesive and electrical switch housings. Early plastics were bio-derived materials such as egg and blood proteins, in 1600 BC, Mesoamericans used natural rubber for balls, bands, and figurines. Treated cattle horns were used as windows for lanterns in the Middle Ages, materials that mimicked the properties of horns were developed by treating milk-proteins with lye. In the 1800s, as industrial chemistry developed during the Industrial Revolution, the development of plastics also accelerated with Charles Goodyears discovery of vulcanization to thermoset materials derived from natural rubber. Parkesine is considered the first man-made plastic, the plastic material was patented by Alexander Parkes, In Birmingham, UK in 1856. It was unveiled at the 1862 Great International Exhibition in London, parkesine won a bronze medal at the 1862 Worlds fair in London
Plastic
–
Household items made of various types of plastic
Plastic
–
A chair made with a polypropylene seat
Plastic
–
Plastic (LDPE) bowl, by GEECO, Made in England, c1950.
Plastic
–
Molded plastic food replicas on display outside a restaurant in
Japan
36.
Alloy
–
An alloy is a mixture of metals or a mixture of a metal and another element. Alloys are defined by a metallic bonding character, an alloy may be a solid solution of metal elements or a mixture of metallic phases. Intermetallic compounds are alloys with a stoichiometry and crystal structure. Zintl phases are sometimes considered alloys depending on bond types. Alloys are used in a variety of applications. In some cases, a combination of metals may reduce the overall cost of the material while preserving important properties, in other cases, the combination of metals imparts synergistic properties to the constituent metal elements such as corrosion resistance or mechanical strength. Examples of alloys are steel, solder, brass, pewter, duralumin, bronze, the alloy constituents are usually measured by mass. Alloys are usually classified as substitutional or interstitial alloys, depending on the arrangement that forms the alloy. They can be classified as homogeneous, or heterogeneous or intermetallic. An alloy is a mixture of elements, which forms an impure substance that retains the characteristics of a metal. Alloys are made by mixing two or more elements, at least one of which is a metal and this is usually called the primary metal or the base metal, and the name of this metal may also be the name of the alloy. The other constituents may or may not be metals but, when mixed with the base, they will be soluble. The mechanical properties of alloys will often be different from those of its individual constituents. A metal that is very soft, such as aluminium, can be altered by alloying it with another soft metal. Although both metals are soft and ductile, the resulting aluminium alloy will have much greater strength. Adding a small amount of carbon to iron trades its great ductility for the greater strength of an alloy called steel. Due to its strength, but still substantial toughness, and its ability to be greatly altered by heat treatment, steel is one of the most useful. By adding chromium to steel, its resistance to corrosion can be enhanced, creating stainless steel, while adding silicon will alter its electrical characteristics, producing silicon steel
Alloy
–
Liquid
bronze, being poured into molds during casting.
Alloy
–
Wire rope made from
steel, which is a metal alloy whose major component is
iron, with
carbon content between 0.02% and 2.14% by mass.
Alloy
–
A
brass lamp.
Alloy
–
A gate valve, made from
Inconel.
37.
Disk (mathematics)
–
In geometry, a disk is the region in a plane bounded by a circle. A disk is said to be closed if it contains the circle that constitutes its boundary, and open if it does not. In Cartesian coordinates, the disk of center and radius R is given by the formula D = while the closed disk of the same center. The area of a closed or open disk of radius R is πR2, the open disk and the closed disk are not topologically equivalent, as they have different topological properties from each other. For instance, every closed disk is compact whereas every open disk is not compact, however from the viewpoint of algebraic topology they share many properties, both of them are contractible and so are homotopy equivalent to a single point. This implies that their groups are trivial, and all homology groups are trivial except the 0th one. The Euler characteristic of a point is 1, every continuous map from the closed disk to itself has at least one fixed point, this is the case n=2 of the Brouwer fixed point theorem. The statement is false for the disk, Consider for example the function f = which maps every point of the open unit disk to another point on the open unit disk to the right of the given one. But for the unit disk fixes every point on the half circle x 2 + y 2 =1, x >0
Disk (mathematics)
–
Disc with
circumference (C) in black,
diameter (D) in cyan,
radius (R) in red, and
centre (O) in magenta.
38.
Bullion coin
–
A bullion coin is a coin struck from precious metal and kept as a store of value or an investment, rather than used in day-to-day commerce. Under United States law, coins that fail the last of these requirements are not coins at all, bullion coins are usually available in both gold and silver, with the exceptions of the Krugerrand and the Swiss Vreneli which are only available in gold. The American Eagle series is available in gold, silver and platinum, bullion coins are typically available in various weights. These are usually multiples or fractions of 1 troy ounce, bullion coins sell for a premium over the market price of the metal on the commodities exchanges. Reasons include their small size and the costs associated with manufacture, storage. The amount of the premium varies depending on the type and weight. The premium also is affected by prevailing demand, the ISO currency code for gold bullion is XAU. ISO4217 includes codes not only for currencies, but also for precious metals and certain other entities used in international finance, the European Commission publishes annually a list of gold coins which must be treated as investment gold coins in all EU Member States. The list has legal force and supplements the law, in the United Kingdom, HM Revenue and Customs have added an additional list of gold coins alongside the European Commission list. These are gold coins that HMRC recognise as falling within the VAT exemption for investment gold coins, the following list presents only the most common coins included in the European Commission list. Silver coin Palladium coin Platinum coin
Bullion coin
–
Krugerrand gold bullion coin, minted in 2012
Bullion coin
–
Britannia silver bullion coin, minted in 2014
39.
Money
–
The main functions of money are distinguished as, a medium of exchange, a unit of account, a store of value, and, sometimes, a standard of deferred payment. Any item or verifiable record that fulfills these functions can be considered as money, Money is historically an emergent market phenomenon establishing a commodity money, but nearly all contemporary money systems are based on fiat money. Fiat money, like any check or note of debt, is without use value as a physical commodity. It derives its value by being declared by a government to be legal tender, the money supply of a country consists of currency and, depending on the particular definition used, one or more types of bank money. Bank money, which consists only of records, forms by far the largest part of money in developed countries. The word money is believed to originate from a temple of Juno, in the ancient world Juno was often associated with money. The temple of Juno Moneta at Rome was the place where the mint of Ancient Rome was located, the name Juno may derive from the Etruscan goddess Uni and Moneta either from the Latin word monere or the Greek word moneres. In the Western world, a prevalent term for coin-money has been specie, stemming from Latin in specie, meaning in kind. The use of methods may date back to at least 100,000 years ago. Instead, non-monetary societies operated largely along the principles of gift economy, when barter did in fact occur, it was usually between either complete strangers or potential enemies. Many cultures around the world eventually developed the use of commodity money, the Mesopotamian shekel was a unit of weight, and relied on the mass of something like 160 grains of barley. The first usage of the came from Mesopotamia circa 3000 BC. Societies in the Americas, Asia, Africa and Australia used shell money – often, according to Herodotus, the Lydians were the first people to introduce the use of gold and silver coins. It is thought by scholars that these first stamped coins were minted around 650–600 BC. The system of commodity money eventually evolved into a system of representative money and this occurred because gold and silver merchants or banks would issue receipts to their depositors – redeemable for the commodity money deposited. Eventually, these became generally accepted as a means of payment and were used as money. Paper money or banknotes were first used in China during the Song Dynasty and these banknotes, known as jiaozi, evolved from promissory notes that had been used since the 7th century. However, they did not displace commodity money, and were used alongside coins, in the 13th century, paper money became known in Europe through the accounts of travelers, such as Marco Polo and William of Rubruck
Money
–
A 640 BC one-third
stater electrum coin from
Lydia
Money
–
A sample picture of a fictional ATM card. The largest part of the world's money exists only as accounting numbers which are transferred between financial computers. Various plastic cards and other devices give individual consumers the power to electronically transfer such money to and from their bank accounts, without the use of currency.
Money
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Song Dynasty Jiaozi, the world's earliest paper money
Money
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Printing paper money at a printing press in Perm
40.
Inflation
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In economics, inflation is a sustained increase in the general price level of goods and services in an economy over a period of time resulting in a loss of value of currency. When the price rises, each unit of currency buys fewer goods. Consequently, inflation reflects a reduction in the power per unit of money – a loss of real value in the medium of exchange. A chief measure of inflation is the inflation rate, the annualized percentage change in a general price index, usually the consumer price index. The opposite of inflation is deflation, Inflation affects economies in various positive and negative ways. Economists generally believe that high rates of inflation and hyperinflation are caused by a growth of the money supply. However, money supply growth does not necessarily cause inflation, some economists maintain that under the conditions of a liquidity trap, large monetary injections are like pushing on a string. Views on which factors determine low to moderate rates of inflation are more varied, low or moderate inflation may be attributed to fluctuations in real demand for goods and services, or changes in available supplies such as during scarcities. However, the view is that a long sustained period of inflation is caused by money supply growing faster than the rate of economic growth. Today, most economists favor a low and steady rate of inflation, the task of keeping the rate of inflation low and stable is usually given to monetary authorities. Rapid increases in quantity of the money or in the money supply have occurred in many different societies throughout history. By diluting the gold with other metals, the government could issue more coins without also needing to increase the amount of used to make them. When the cost of each coin is lowered in this way and this practice would increase the money supply but at the same time the relative value of each coin would be lowered. As the relative value of the coins becomes lower, consumers would need to give more coins in exchange for the same goods and these goods and services would experience a price increase as the value of each coin is reduced. Song Dynasty China introduced the practice of printing paper money in order to create fiat currency, during the Mongol Yuan Dynasty, the government spent a great deal of money fighting costly wars, and reacted by printing more money, leading to inflation. Fearing the inflation that plagued the Yuan dynasty, the Ming Dynasty initially rejected the use of paper money, historically, large infusions of gold or silver into an economy also led to inflation. This was largely caused by the influx of gold and silver from the New World into Habsburg Spain. The silver spread throughout a previously cash-starved Europe and caused widespread inflation, demographic factors also contributed to upward pressure on prices, with European population growth after depopulation caused by the Black Death pandemic
Inflation
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Two 20 kr gold coins from the
Scandinavian Monetary Union, a historical example of an international gold standard.
Inflation
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Annual inflation rates in the United States from 1666 to 2004.
41.
Silver
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Silver is a metallic element with symbol Ag and atomic number 47. The symbol Ag stems from Latin argentum, derived from the Greek ὰργὀς, a soft, white, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. The metal is found in the Earths crust in the pure, free form, as an alloy with gold and other metals. Most silver is produced as a byproduct of copper, gold, lead, Silver is more abundant than gold, but it is much less abundant as a native metal. Its purity is measured on a per mille basis, a 94%-pure alloy is described as 0.940 fine. As one of the seven metals of antiquity, silver has had a role in most human cultures. Silver has long valued as a precious metal. Silver metal is used in many premodern monetary systems in bullion coins, Silver is used in numerous applications other than currency, such as solar panels, water filtration, jewelry, ornaments, high-value tableware and utensils, and as an investment medium. Silver is used industrially in electrical contacts and conductors, in specialized mirrors, window coatings, Silver compounds are used in photographic film and X-rays. Dilute silver nitrate solutions and other compounds are used as disinfectants and microbiocides, added to bandages and wound-dressings, catheters. Silver is similar in its physical and chemical properties to its two neighbours in group 11 of the periodic table, copper and gold. This distinctive electron configuration, with an electron in the highest occupied s subshell over a filled d subshell. Silver is a soft, ductile and malleable transition metal. Silver crystallizes in a cubic lattice with bulk coordination number 12. Unlike metals with incomplete d-shells, metallic bonds in silver are lacking a covalent character and are relatively weak and this observation explains the low hardness and high ductility of single crystals of silver. Silver has a brilliant white metallic luster that can take a polish. Protected silver has greater optical reflectivity than aluminium at all wavelengths longer than ~450 nm, at wavelengths shorter than 450 nm, silvers reflectivity is inferior to that of aluminium and drops to zero near 310 nm. The electrical conductivity of silver is the greatest of all metals, greater even than copper, during World War II in the US,13540 tons of silver were used in electromagnets for enriching uranium, mainly because of the wartime shortage of copper
Silver
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Electrolytically refined silver
Silver
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Silver 1000
oz t (~31 kg) bullion bar
Silver
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Cessna 210 equipped with a silver iodide generator for
cloud seeding
Silver
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A Canadian 50 cent piece from 1951, with King George the 6th on the obverse and Canada's (now former) coat of arms on the reverse. It is made of 80% silver and 20% copper.
42.
Gold
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Gold is a chemical element with symbol Au and atomic number 79. In its purest form, it is a bright, slightly yellow, dense, soft, malleable. Chemically, gold is a metal and a group 11 element. It is one of the least reactive chemical elements and is solid under standard conditions, Gold often occurs in free elemental form, as nuggets or grains, in rocks, in veins, and in alluvial deposits. It occurs in a solid solution series with the element silver and also naturally alloyed with copper. Less commonly, it occurs in minerals as gold compounds, often with tellurium, golds atomic number of 79 makes it one of the higher numbered, naturally occurring elements. It is thought to have produced in supernova nucleosynthesis, from the collision of neutron stars. Because the Earth was molten when it was formed, almost all of the present in the early Earth probably sank into the planetary core. Gold is resistant to most acids, though it does dissolve in aqua regia, a mixture of acid and hydrochloric acid. Gold also dissolves in solutions of cyanide, which are used in mining and electroplating. Gold dissolves in mercury, forming amalgam alloys, but this is not a chemical reaction, as a precious metal, gold has been used for coinage, jewelry, and other arts throughout recorded history. A total of 186,700 tonnes of gold is in existence above ground, the world consumption of new gold produced is about 50% in jewelry, 40% in investments, and 10% in industry. Gold is also used in infrared shielding, colored-glass production, gold leafing, certain gold salts are still used as anti-inflammatories in medicine. As of 2014, the worlds largest gold producer by far was China with 450 tonnes, Gold is cognate with similar words in many Germanic languages, deriving via Proto-Germanic *gulþą from Proto-Indo-European *ǵʰelh₃-. The symbol Au is from the Latin, aurum, the Latin word for gold, the Proto-Indo-European ancestor of aurum was *h₂é-h₂us-o-, meaning glow. This word is derived from the root as *h₂éu̯sōs, the ancestor of the Latin word Aurora. This etymological relationship is presumably behind the frequent claim in scientific publications that aurum meant shining dawn, Gold is the most malleable of all metals, a single gram can be beaten into a sheet of 1 square meter, and an avoirdupois ounce into 300 square feet. Gold leaf can be thin enough to become semi-transparent
Gold
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Gold, 79 Au
Gold
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Moche gold necklace depicting feline heads.
Larco Museum Collection. Lima-Peru
Gold
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Mirror for the future
James Webb Space Telescope coated in gold to reflect infrared light
Gold
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The
world's largest gold bar has a mass of 250 kg.
Toi museum,
Japan.
43.
Platinum
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Platinum is a chemical element with symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious and its name is derived from the Spanish term platina, translated into little silver. Platinum is a member of the group of elements and group 10 of the periodic table of elements. It has six naturally occurring isotopes and it is one of the rarer elements in Earths crust with an average abundance of approximately 5 μg/kg. It occurs in some nickel and copper ores along with some deposits, mostly in South Africa. Because of its scarcity in Earths crust, only a few hundred tonnes are produced annually, Platinum is one of the least reactive metals. It has remarkable resistance to corrosion, even at high temperatures, consequently, platinum is often found chemically uncombined as native platinum. Because it occurs naturally in the sands of various rivers. Platinum is used in catalytic converters, laboratory equipment, electrical contacts and electrodes, platinum resistance thermometers, dentistry equipment, and jewelry. Being a heavy metal, it leads to health issues upon exposure to its salts, compounds containing platinum, such as cisplatin, oxaliplatin and carboplatin, are applied in chemotherapy against certain types of cancer. Pure platinum is a lustrous, ductile, and malleable, silver-white metal, Platinum is more ductile than gold, silver or copper, thus being the most ductile of pure metals, but it is less malleable than gold. The metal has excellent resistance to corrosion, is stable at temperatures and has stable electrical properties. Platinum reacts with oxygen slowly at high temperatures. It reacts vigorously with fluorine at 500 °C to form platinum tetrafluoride and it is also attacked by chlorine, bromine, iodine, and sulfur. Platinum is insoluble in hydrochloric and nitric acid, but dissolves in hot aqua regia to form chloroplatinic acid and its physical characteristics and chemical stability make it useful for industrial applications. Its resistance to wear and tarnish is well suited to use in fine jewelry, the most common oxidation states of platinum are +2 and +4. The +1 and +3 oxidation states are common, and are often stabilized by metal bonding in bimetallic species. As is expected, tetracoordinate platinum compounds tend to adopt 16-electron square planar geometries, Platinum has six naturally occurring isotopes, 190Pt, 192Pt, 194Pt, 195Pt, 196Pt, and 198Pt
Platinum
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Platinum, 78 Pt
Platinum
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Platinum being dissolved in hot
aqua regia
Platinum
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A native platinum nugget,
Kondyor mine,
Khabarovsk Krai
Platinum
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Antonio de Ulloa is credited with the discovery of platinum.
44.
Palladium
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Palladium is a chemical element with symbol Pd and atomic number 46. It is a rare and lustrous silvery-white metal discovered in 1803 by William Hyde Wollaston and he named it after the asteroid Pallas, which was itself named after the epithet of the Greek goddess Athena, acquired by her when she slew Pallas. Palladium, platinum, rhodium, ruthenium, iridium and osmium form a group of elements referred to as the platinum group metals and these have similar chemical properties, but palladium has the lowest melting point and is the least dense of them. More than half the supply of palladium and its congener platinum is used in catalytic converters, Palladium is also used in electronics, dentistry, medicine, hydrogen purification, chemical applications, groundwater treatment, and jewelry. Palladium is a key component of cells, which react hydrogen with oxygen to produce electricity, heat. Ore deposits of palladium and other PGMs are rare, recycling is also a source, mostly from scrapped catalytic converters. The numerous applications and limited supply sources result in considerable investment interest, Palladium belongs to group 10 in the periodic table, but the configuration in the outermost electron shells is atypical for group 10. Fewer electron shells are filled than the directly preceding it. The valence shell has eighteen electrons – ten more than the eight found in the shells of the noble gases from neon onward. Palladium is a soft metal that resembles platinum. It is the least dense and has the lowest melting point of the platinum group metals and it is soft and ductile when annealed and is greatly increased in strength and hardness when cold-worked. Palladium dissolves slowly in concentrated acid, in hot, concentrated sulfuric acid. It dissolves readily at room temperature in aqua regia, common oxidation states of palladium are 0, +1, +2 and +4. Palladium was first observed in 2002, Palladium films with defects produced by alpha particle bombardment at low temperature exhibit superconductivity having Tc=3.2 K. Naturally occurring palladium is composed of seven isotopes, six of which are stable, the most stable radioisotopes are 107Pd with a half-life of 6.5 million years, 103Pd with 17 days, and 100Pd with 3.63 days. Eighteen other radioisotopes have been characterized with atomic weights ranging from 90.94948 u to 122.93426 u and these have half-lives of less than thirty minutes, except 101Pd, 109Pd, and 112Pd. For isotopes with atomic mass unit values less than that of the most abundant stable isotope, 106Pd, the primary mode of decay for those isotopes of Pd with atomic mass greater than 106 is beta decay with the primary product of this decay being silver. Radiogenic 107Ag is a product of 107Pd and was first discovered in 1978 in the Santa Clara meteorite of 1976
Palladium
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Palladium, 46 Pd
Palladium
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Palladium(II) oxide forms on the surface of palladium when heated above 800 °C in air
Palladium
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Palladium(II) chloride
Palladium
–
Palladium(II) acetate
45.
Sovereign (British coin)
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The sovereign is a gold coin of the United Kingdom, with a nominal value of one pound sterling. Prior to 1932 it was a circulating coin within Britains then Gold Standard currency. Today it is used as a coin and is sometimes mounted in jewellery. Named after the English gold sovereign, last minted in 1604, minting these new sovereigns began in 1817. The gold content was fixed by the act of 1816 at 1320/5607 troy ounces. This weight has remained almost constant — rounding at 10−6 g took place on its legal redefinition in the rather than fractional system of coin weights. Sovereigns have been minted in the United Kingdom from 1817 to 1917, in 1925, in the past Australia, Canada, and South Africa all occasionally minted the coins. Today, they are minted at the Royal Mint in Llantrisant, Wales, in addition to the sovereign, the Royal Mint also struck ten-shilling half sovereigns, two-pound double sovereigns, and five-pound quintuple sovereign coins. Only the sovereign and the sovereign were commonly struck for circulation. In 2009, The Royal Mint released a new coin in the sovereign series and this was succeeded by a portrayal of Saint George killing a dragon, engraved by Benedetto Pistrucci. In Victorian times it was the practice of the Bank of England to remove worn sovereigns and half sovereigns from circulation, consequently, although a billion sovereigns have been minted in total, that figure includes gold that has been coined and recoined a number of times. When gold coins were withdrawn from circulation in 1933 in the US. It was actually the half-sovereign that had the most circulation in Victorian Britain, many sovereigns languished in bank vaults for most of their lives. In 1889 and 1890 Orders in Council were made permitting members of the public to hand in any gold coins that were underweight and have them replaced by full-weight coins. A proclamation was issued in November 1890 that any gold coin struck before 1837 would cease to be legal tender with effect from 28 February 1891. This recycled gold was subsequently reminted into 13,680,486 half sovereigns in 1892 and 10,846,741 sovereigns in 1900, Sovereign obverse dies were also used in the nineteenth century to create farthings once they had become worn. Sovereigns were produced in large quantities until World War I, at time the UK came off the gold standard. From then until 1932, sovereigns were produced only at branch mints at Melbourne, Sydney, Perth, Bombay, Ottawa, the last regular issue was in 1932
Sovereign (British coin)
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1817 sovereign of George III
Sovereign (British coin)
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1842 "shield back" sovereign
Sovereign (British coin)
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1914 half sovereign from the Sydney mint
Sovereign (British coin)
46.
American Gold Eagle
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The American gold eagle is an official gold bullion coin of the United States. Authorized under the Gold Bullion Coin Act of 1985, it was first released by the United States Mint in 1986 and this is particularly true with the 1/4-oz American gold eagle, which has a marked face value of ten dollars. Offered in 1/10 oz, 1/4 oz, 1/2 oz, and 1 oz denominations, by law, the gold must come from sources in America, alloyed with silver and copper to produce a more wear-resistant coin. The 22 kt gold alloy is an English standard traditionally referred to as crown gold. Crown gold alloys had not been used in U. S. coins since 1834, for American gold eagles the gold fraction was increased again to.9167 or. It is authorized by the United States Congress and is backed by the United States Mint for weight, the design is taken from the $20 Saint-Gaudens gold coin which was commissioned by Theodore Roosevelt to create coins like the ancient Greek and Roman coins. The reverse design, by sculptor Miley Busiek, features an eagle carrying an olive branch flying above a nest containing a female eagle. The market value of the coins is generally equal to the market value of their gold content. Like all commodities, this value fluctuates with market forces, the face values are proportional to the weights except for the 1/4 oz coin. Their actual selling prices vary based on the current spot price of gold, the United States Mint also produces proof and uncirculated versions for coin collectors. These coins are produced at the West Point Mint in West Point, the proof and uncirculated versions carry the mints mark beneath the date. Each of the four sizes contains 91. 67% gold, 3% silver, Gold eagles minted 1986–1991 are dated with Roman numerals. In 1992, the U. S. Mint switched to Arabic numbers for dating gold eagles. The 1/10, 1/4, and 1/2 troy oz coins are identical in design to the 1 troy oz coin except for the markings on the side that indicate the weight. These bullion coins carry face values of $5, $10, $25 and these are their legal values reflecting their issue and monetized value as coins. They are legal tender for all public and private at their face values. These face values do not reflect their intrinsic value which is greater and is mainly dictated by their troy weight. In 2012 the U. S. Mint sold the 2012 one ounce coin at $1,835.00
American Gold Eagle
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Gold Eagle (United States)
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