Définition

• Fishtail.  Unsightly marks on a patinated surface; dark streaks vaguely resembling the tail of a fish. A fishtail surface is a patina anomaly. Also called wipe marks.

  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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