Definition

• Trimetallic.  A numismatic piece of three separate components, each a different metal, bonded to make one blank for striking. The Paris Mint was the first to strike, in 1992, a coin for circulation in a three-metal blank, the 20-franc denomination. Usually a center of one metal surrounded by two separate rings of contrasting metals. Canada followed by conducting experiments in 1995-96 of 14 different bimetallic and trimetallic blanks of round, six-, seven-, eight-, nine- and 11-sided blanks. Canada placed a round bimetallic $2 coin in circulation in 1996.
  References:                                                                                                                            
  P3 {1996) Coin World, August 19, 1996, p 1, 71.

  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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