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PineTreeSniffer t1_j21f4k6 wrote

Its likely the lack of even patina on your coin. It's 200+ years old, it should have a good brownish even patina over the entire surface. The lack of even patina usually means it was cleaned at some point, but it could have been years ago as it does look like its trying to pick a patina back up. With time, it could 're-patina' but not if it stays in that sealed slab and away from oxygen.

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