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.
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…
The front of this coin depicts an animal horn, probably a shofar (parallel lines across the horn suggest horns of rams and some other animals). If this is a shofar, it likely signifies praying to God…
David Yakerson’s Adam and Eve dates from a time before his turn to the much more abstract style of suprematism. In this illustration, Adam and Eve blend in with other decorative elements in a…