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When to "clean" a coin?
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<p>[QUOTE="eddiespin, post: 4164418, member: 4920"]That's verdigris. Acetone might stop the process. Try it once a week for about a month or so, then tuck it away in a 2x2 and see how it does over time. There's not much else that can be done. Some of it looks like it's etched in to stay, while the disturbance behind the ear and above the head might be of the type that can still be loosened some with a moistened toothpick after a soak.[/QUOTE]</p><p><br /></p>
[QUOTE="eddiespin, post: 4164418, member: 4920"]That's verdigris. Acetone might stop the process. Try it once a week for about a month or so, then tuck it away in a 2x2 and see how it does over time. There's not much else that can be done. Some of it looks like it's etched in to stay, while the disturbance behind the ear and above the head might be of the type that can still be loosened some with a moistened toothpick after a soak.[/QUOTE]
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When to "clean" a coin?
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