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<p>[QUOTE=&quot;Numismat, post: 1283433, member: 15019&quot;]I used to use nail polish remover, but learned quickly that that is an absolutely TERRIBLE method.</p><p>You want pure acetone, like the kind you buy at a hardware store. The nail polish remover has additives that leave your coins with a permanent residue or discoloration. But be careful with coins of certain content, such as pure copper, as acetone has been known to leave them with odd discoloration. </p><p>Some people will tell you that acetone will never discolor your coins. Make sure you keep in mind that these people obviously have limited or no experience, as anyone that has used it extensively knows full well that it can discolor some metals and alloys.[/QUOTE]</p><p><br /></p>

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