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<p>[QUOTE=&quot;joecoincollect, post: 2482896, member: 71338&quot;]Yeah, I think I have. Have you? In a response in the post &quot;Is this Verdigris or PVC damage on my cupro-nickel coin,&quot; badthad says:</p><p><br /></p><p>&quot;PVC is a catylist for verdigris formation created by hydrochloric acid forming cupric chloride. PVC damage and verdigris are essentially one in the same.&quot;</p><p><br /></p><p>I understand the difference as well, but as he said, they are linked sometimes[/QUOTE]</p><p><br /></p>

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