Electrotyping
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Electrotyping is a chemical method for forming metal parts that exactly reproduce a model. The method was first experimented by the Italian physicist Luigi Valentino Brugnatelli in 1802. It was later
1837 lithographic portrait of Moritz von Jacobi (1801–1874), who invented electrotyping in 1838.
1841 magazine illustration by Joseph Alexander Adams. The illustration compares direct letterpress printing from a wood carving and from a copper electrotype copy of the carving; it is among the earliest uses of electrotypes in printing.
The electrotyping department of the New York Herald in 1902.
Copper electrotype (1911) of Ernst Rietschel's 1857 sculpture for the Goethe–Schiller Monument in Syracuse, New York USA. This sculpture is about 3.5 metres (11 ft) tall, and was produced by the WMF Company in Germany.
Ozokerite
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Ozokerite, or ozocerite, archaically referred to as earthwax or earth wax, is a naturally occurring odoriferous mineral wax, or paraffin, found in many localities. Lacking a definite composition and c
Electrotyping
…processes and is done near room temperature, the molding material can be soft. Materials such as wax, gutta-percha (natural latex), and ultimately ozokerite were used. The mold's surface is made electrically conducting by coating it very thinly with fine graphite powder or paint. A wire is attached to the…
Ozokerite, Wasatch County, Utah
Ozokerite byu