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<p>[QUOTE=&quot;Kentucky, post: 3626205, member: 33176&quot;]Hey, they&#039;re your coins, do what you like.&nbsp; With that being said, I think you would like to improve the appearance without harming them.&nbsp; The two main sources of harm to coins IMHO are scrubbing/rubbing (ancients excepted) and the use of incorrect reactive chemicals.&nbsp; The use of pure solvents is seldom problematic.&nbsp; If the coins appeared to have oily, greasy or organic residue, acetone would be a good start followed by water.&nbsp; Otherwise, this might work...wash your hands and run the hot water till it is HOT.&nbsp; Put the coin in the sink so the hot water hits directly on it and let it rinse for 30 seconds plus on each side.&nbsp; After this, an overnight acetone soak (covered container - it evaporates fast) and a blot dry.&nbsp; Anything beyond this require a some expertise.[/QUOTE]</p><p><br /></p>

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