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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