Definition

• Spots, Spotting.  Any of a number of small blotches of toning, tarnish or corrosion appearing on the surface of a numismatic or medallic item. Water spots are particularly unattractive, as well as sulfur spots (formerly called "carbon spots"). Removal of spots, stains, blotches is called spotting out and is part of refinishing.

  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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