Methods for enhanced grading of mint quality coins
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United States of America Patent
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Nov 22, 2016
Grant Date -
Jun 30, 2016
app pub date -
Dec 26, 2014
filing date -
Dec 26, 2014
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Abstract
Grade enhancement of mint grade and proof-like coins is disclosed based on a determination of an indication that the coin was a “first strike” coin. First strike is defined by the first 10% or less of coins struck by the same die and may be determined by the location of a physical attribute of the coin present in at most 10% of similar coins struck by the same die. First strike in proof-like coins may be determined by frosted white cameo.
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