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<p>[QUOTE=&quot;TheMont, post: 2616266, member: 80121&quot;]I read your link and it refers to copper coins. Simply exposing a copper coin to air can cause it to turn brown and in a humid climate water can cause corrosion problems. When I lived back east I used to put a moisture absorbing cartridge in with my coins, here in the southwest that&#039;s not necessary. I&nbsp; guess I should have said I have never seen a PVC (*poly vinyl Chloride) flip that creates a film hurt a coin, except for copper coins.</p><p><br /></p><p>rim&#039;s cents, does that make you feel better? There are ways to add to a person&#039;s answer that is not rude or &quot;clever&quot;. I belong to several forum&#039;s and this is the only ones where people seem to enjoy sitting on the side and waiting for a chance to snipe someone. You made a valid point, but not in a very nice way. Anyone with any coin collecting experience knows that copper coins are the hardest to keep in their original condition, even the TPGs have red, red/brown, and brown to describe the color of copper, the only metal, that they list a coin&#039;s color. The example you show above still has the PVC damage so how the author lists parts of the coin still covered by the PVC green film as damaged, without removing the film, is beyond me.[/QUOTE]</p><p><br /></p>

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