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<p>[QUOTE=&quot;GDJMSP, post: 326565, member: 112&quot;]Not uncommon Drusus. PVC contamination can look many different ways, it can be green, it can be brown, it can be black. And it can be in just a few spots or it can completely cover the coin. There are as amny possible variations as to how it can look as there are coins.</p><p><br /></p><p>When I first looked at the coin in this thread the very first thing that popped into my head was PVC. NCS obviously thought so too. And since they had the coin in hand and all we have is pictures, I&#039;m inclined to believe they were correct. I can also see no possible benefit for them to lie and say it was PVC when it was something else. Especially since the process they use <u>does not</u> remove toning from a coin unless it is the black corrosive type. They go out of their way to retain toning and only remove contaminants.[/QUOTE]</p><p><br /></p>

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