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<p>[QUOTE=&quot;PJGS, post: 168231, member: 6895&quot;]My experience says that we should avoid cleaning coins at all costs. I&#039;ve cleaned several low value coins and results have ranged from reasonable to terrible. Tonned coins are the ones that suffered the most as they looked washed out. </p><p>Someone told me copper coins can be cleaned with gasoline to remove dirt or hot olive oil to remove the green oxidation. Tried the last one and it worked now time will tell if that green oxidation will come back. This was the only time that cleaning a coin was a good thing.[/QUOTE]</p><p><br /></p>

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