spark-erosion strike A coin made from spark-erosion dies. These are characterized by the telltale Â"pimplesÂ" noted mainly on the areas in relief.
Spark-erosion strike
A coin made from spark-erosion dies, often showing signs of pitting in the relief areas as a result of the die surface.
Special Mint Set ...
 See also: Surfaces, Large size, Lettering, Alloy, Liberty
  
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