Definizione

• Module.  The diameter of a coin or medal. The module presumes the piece is round so one measurement is obviously diameter (two dimensions would imply a coin or medal that is not round – oval, rectangular, or irregularly shaped). The word is French and is expressed symbolically as ?.  See diameter.
      

  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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