Définition

• Untoned.  Before any toning or tarnish has occurred to the surface of a coin or medal. A specimen is said to be untoned when it is in fresh condition, as a copper coin with mint luster – what collectors call red – before it turns brown by exposure to the atmosphere or contaminates. After the surface has toned it is said to be aged.

  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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