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<p>[QUOTE=&quot;BadThad, post: 2029211, member: 17261&quot;]Unless the coin were wrapped in a shower curtain, what you have is simple verdigris. The odds of there being any PVC are astronomical since they came from a &quot;piggy bank&quot;. More than likely, they are all common coins and not worth cleaning.</p><p><br /></p><p>Acetone will not remove verdigris. Using it on these coins would be a complete waste of time and money. The best you can do is look through them and see if you can identify any key or semi-key dates. Then come back and talk about the possibility of removing the verdigris.[/QUOTE]</p><p><br /></p>

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