Definición

• Adjustment Marks.  Evidence of adjusting – usually file marks – seen on a struck piece. These may appear as many parallel scratches,  more so in the field where it is easier to view them, rather than in the center of a coin design under the device or detail. However most filing was done near the edges. Under magnification these marks would have the appearance as light troughs but the surrounding surface may appear to "fold over" the edge into the crevice, this is a natural action of surface metal displacement during coining and is a diagnostic of a true adjustment mark.
  Reference:                                                                                                                                
  NE42 {1982} Doty, p 5.

  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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