Creator Bio
Lewis Feuchtwanger
Lewis Feuchtwanger was a German doctor and metallurgist who immigrated to New York City in 1829, where he opened a pharmacy and practiced medicine. He became well known for his collection of minerals and for attempting to introduce nickel silver into U.S. coinage, drawing attention to the combustibility of saltpeter. He was a member of scientific societies in the United States and abroad.
Entries in the Posen Library by This Creator
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Feuchtwanger Cent
In 1829, German Jewish metallurgist Lewis Feuchtwanger attempted to introduce a metal alloy known as “German silver” into U.S. coinage, promoting this nickel silver as a less-expensive alternative for…
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Chart of Gems from A Popular Treatise on Gems
This chart displaying the colors of gems and minerals is from A Popular Treatise on Gems and Minerals by Lewis Feuchtwanger, a German Jewish immigrant to the United States, a doctor who was also well…