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<p>[QUOTE=&quot;BadThad, post: 25392068, member: 17261&quot;]GDJMSP just covered most of it. You removed the plasticizer residue with acetone, that was a good first step....but...you should have stuck with just soaking to avoid potential physical damage. A non-polar organic solvent (xylene, never use toluene!) will not remove or treat the verdigris. I see your choices as:</p><p><br /></p><p>1) Attempt profession conservation. If this is very valuable coin, you probably should have just left it to the pros. After q-tips it may be impossible to save.</p><p>2) Dehydrate the verdigris with acetone and put the coin into an airtite holder. This will keep it mostly in check.</p><p>3) VERDI-CARE™ to attempt to remove the verdigris and, if it won&#039;t budge, at least it will freeze it where it is.</p><p><br /></p><p>Good Luck![/QUOTE]</p><p><br /></p>

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