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<p>[QUOTE=&quot;gocamels, post: 412690, member: 14934&quot;]Electrolysis will take off the verdigris - it will also take off any patina.&nbsp; </p><p><br /></p><p>I know from cleaning a few ancient coppers that electrolysis is held back as an absolute last resort.</p><p><br /></p><p>I can give you Bob Grellman&#039;s recommendations for cleaning early coppers.&nbsp; I have tried it and the coins come out absolutely gorgeous.</p><p><br /></p><p>First, a few drops of xylene (maybe called xylol also - available at most paint supply stores) and a nylon artist&#039;s brush.&nbsp; Just wet the face of the coin and tap with the brush until all the junk has loosened, then rinse with distilled water.</p><p><br /></p><p>Look in the crevices to make sure everything is gone.&nbsp; You can get really stubborn deposits with a toothpick and magnification if needed.</p><p><br /></p><p>Then brush a coat of Coin Care or Blue Ribbon cleaner onto the coin and brush it back off with a clean, soft brush like a jeweler&#039;s brush.</p><p><br /></p><p>The Coin Care/Blue Ribbon leaves a very thin protective coat on the coin, but this process does not alter the appearance of the patina of the coin.[/QUOTE]</p><p><br /></p>

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