Coins that are solid or high - end for their grades will have a green , tamper - evident holographic sticker affixed to their holders .
For tiered fees , CAC examines certain numismatically valuable U.S. coins to determine their quality within their assigned grades .
Coins that are solid or high - end for CAC 's grades will have a green , tamper - evident holographic sticker affixed to their holders .
For tiered fees , CAC examines certain numismatically valuable U.S. coins to determine their quality within their assigned grades .