Methods for Enhanced Grading of Mint Quality Coins

摘要

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.

主权项

1. A method for grade enhancement of a mint state coin, comprising:
inspecting the mint state coin to either provide a Sheldon grade, to confirm a previously granted Sheldon grade, or to confirm that a Sheldon grade certification exists for the mint state coin; inspecting at least one of the obverse and the reverse of the mint state coin; determining whether the mint state coin is a first strike coin; and providing a grade enhancement indicator for the mint state coin only if the mint state coin is a first strike coin.