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<p>[QUOTE=&quot;GDJMSP, post: 1135014, member: 112&quot;]The thing you have to realize about fingerprints is this - after a few days a fingerprint cannot be removed with simple means because the a fingerprint actually etches the metal. But - if a fingerprint is fresh, less than few days old, it can be safely removed by dipping the coin in acetone. But this is for non-copper coins only. Acetone can sometimes turn copper weird colors so it is no trecommended to use acetone on copper coins.</p><p><br /></p><p>That said, even old fingerprints can be removed from coins by using a coin dip - an acid. This works because the acid removes the top layer of metal (and the fingerprint) from the coin. But the problem is it may also damage the coin to the point that it becomes a problem coin depending on how deeply the fingerprint has etched the metal. Dip it long enough to completely remove the fingerprint and you may also strip away any and all luster from the coin.</p><p><br /></p><p>For this reason, once a coin has a fingerprint on it, most people just leave it alone. They prefer to avoid the risk.[/QUOTE]</p><p><br /></p>

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