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<p>[QUOTE="Marsyas Mike, post: 7426486, member: 85693"]Interesting problem - my PVC experience with silver is similar to the comment by [USER=10613]@Victor_Clark[/USER] - a greasy residue and green gunk on the flip. It comes off the coin with a thumb rub. I throw the flip away. </p><p><br /></p><p>I've had silver world crowns in PVC flips for 30 years or so and sometimes nothing happens at all, but occasionally, the green stuff appears. Mostly nothing happens, even after decades. </p><p><br /></p><p>It makes no sense to me - my coins are all stored in similar atmospheric conditions. I have never seen any actual surface damage happen to a silver coin as shown in the OP. That a collection has similar damage makes me wonder, though.[/QUOTE]</p><p><br /></p>
[QUOTE="Marsyas Mike, post: 7426486, member: 85693"]Interesting problem - my PVC experience with silver is similar to the comment by [USER=10613]@Victor_Clark[/USER] - a greasy residue and green gunk on the flip. It comes off the coin with a thumb rub. I throw the flip away. I've had silver world crowns in PVC flips for 30 years or so and sometimes nothing happens at all, but occasionally, the green stuff appears. Mostly nothing happens, even after decades. It makes no sense to me - my coins are all stored in similar atmospheric conditions. I have never seen any actual surface damage happen to a silver coin as shown in the OP. That a collection has similar damage makes me wonder, though.[/QUOTE]
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