Definition

• Rack Mark.  Evidence on a medallic item at three or more points in which coloring, finish or lacquer is missing. The tiny points are where the medallic item was supported while it was worked on, as during a finishing or lacquering operation. Rack marks usually appear at three equidistant points along the edge where the supporting prongs, wires or stilts make a point of contact and thus prevent any finishing at those points.  See  stilts.

  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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