Definición

• Capping.  A striking error where a piece does not eject but wraps around the die on subsequent strikes. The resulting piece takes the shape of a bottle cap, hence this name. Collectors call this a cap, or capped die. Mint workers prefer the term cupping. 

  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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