Definizione

• Disk.  (1) A thin circular metal nameplate applied to the back of a decoration (or sculpture); it contains the maker's name, imprint or maker's mark. The disk is usually diestruck (even if the object is cast) and covers only a small central portion of the reverse of the object and differs from a backplate which covers the entire reverse. Its purpose is to identify the maker and help guarantee authenticity (counterfeit disks are usually cast).

  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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