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Proof isn't a grade; it describes a process by which collectible coins are specially minted using high-pressure presses and highly polished dies, resulting in a very sharp image and mirrorlike surface.

Please see the Related Link for a full explanation from the U.S. Mint.

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15y ago

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What does PF 61 mean in a Morgan silver dollar?

The designation "PF" for any coin means it's a Proof coin. Proof coins are given a grade from PF60 to PF70.


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See related answers.


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