Définition

• Tripoli.  A cutting compound because the abrasive grains are coarse, but it is also considered a polishing agent (compound) for certain coarse surfaces.  See buffing and polishing.

  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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