Definizione

• Metal.  The hard material in which all coins and most medals are made. Metal is chosen for its permanency, for its ability to take a diestruck or cast surface, to withstand wear as a circulating media, and for medals, to be finished as with a patina, and to retain these desirable characteristics forever.  See composition (2).
       

  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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