wow, beautiful coin. I'm no expert at determining types of proofs but it looks more like a sandblast finish like the early 20th cent gold proofs than any other type to me.
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It looks like it was bronzed after striking. Bronzing is typical of medals, but not too often on patterns. I believe what they did was heat the coin and then put it in a container with pulverized copper filings, sulpher and some other stuff. It would make the coin turn brown and make the surface matte.
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Do you have a reverse pic?
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Yes a proof, and lovely! The only way I can tell for sure is because PCGS says it is!
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This is a Anthony C. Paquet design.
My Adolph A. Weinman signature
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