Définition

• Flip-over Double Strike.  A coining error in which a struck item does not eject but flips over between the dies and is struck again. It will show obverse and reverse design on each side; the first impression being indistinct and mutilated by the second impression. It is impossible to detect a piece that had been capriciously fed into the press by a person, or a struck piece left in the hopper that is fed into the coining press and struck again.

  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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