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<p>[QUOTE=&quot;medoraman, post: 1804429, member: 26302&quot;]No, no, no. I am calling BS on this Doug. A green patina has NOTHING AT ALL to do with verdigris or bronze disease. They are chemical completely different, and to infer they have ANYTHING in common is to confuse and mislead anyone reading.</p><p><br /></p><p>A hard green patina on a coin is a very stable, (and in ancients very desirable and expensive), patina formed on copper coins. Verdigris is a chemical disease which will rot metal if left unattended. Yes, verdigris is corrosion, but a hard green patina, (which I have personally seen on US coins as little as 80 years old), is not.</p><p><br /></p><p>Those are the facts, Doug.[/QUOTE]</p><p><br /></p>

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