The United States Bullion Depository, often known as Fort Knox, is a fortified vault building located next to the United States Army post of Fort Knox, Kentucky. It is operated by the United States Department of the Treasury. The vault is used to store a large portion of the United States' gold reserves as well as other precious items belonging to or in custody of the federal government. It currently holds roughly 147 million troy ounces of gold bullion, a little over half the total gold presently held by the federal government. The United States Mint Police protects the depository.
The United States Bullion Depository
Loaded mail truck leaves the New York City Assay Office, 1941.
Gold trains preparing to unload bullion onto Army trucks, 1941
Archibald Macleish unboxing the Declaration of Independence and US Constitution after arriving back to the Library of Congress in October, 1944 after having been stored at Fort Knox
The United States Post Office Department was the predecessor of the United States Postal Service, established in 1792. From 1872 to 1971, it was officially in the form of a Cabinet department. It was headed by the postmaster general.
First U.S. postage stamps, authorized by Congress March 3, 1847. Earliest known use of the 5¢ Franklin is July 7, 1847, and the 10¢ Washington is July 2, 1847.
Mineral Wells, Texas, post office, built between 1911 and 1913