Definition

• Pinchbeck.  An alloy of copper and 10-15% zinc. Invented by Christopher Pinchbeck (1670-1732), it was used to imitate gold, and is also called "Chapman's gold" or "Mannheim gold." Later it would have the same formulation as tombac, but commercially would be known as red brass or rich low brass. See bronze.

  excerpted with permission from

  An Encyclopedia of Coin and Medal Technology

  For Artists, Makers, Collectors and Curators

  COMPILED AND WRITTEN BY D. WAYNE JOHNSON

  Roger W. Burdette, Editor

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