Discussion in 'Ancient Coins' started by Numisnewbiest, Jan 16, 2021.
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I don't know - the picture is from a listing for the coin.
It’s probably coming from a cotton pin, a cloth or a brush. This can get stuck even though no wax has been involved. Try distilled water first, then acetone if there is wax on the coin. I wouldn’t worry about it.
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