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<p>[QUOTE=&quot;lupinus911, post: 1033586, member: 27675&quot;]About a month ago I bought a few rolls of cents. I took out the ones worth keeping and dumped the rest in a metal container, and forgot about them. Yesterday when I opened them I found that some of the cents had developed a white, crusty like quality to them. It does not appear to be PVC staining because some of the patterns created by this mystery substance appear to have been fluid-like. Some coins that have browned also appear to have also regained some of their luster. Also there is minor toning that has appeared in most of the coins. Some of the coins toned are also cents that have been recently minted (2010). Another thing is that some of the coins have developed black spots, some small others almost covering the whole design. What is this stuff? Does it make the coins worthless or does it raise their value because of the toning/regeneration of luster? Anything will be useful.[/QUOTE]</p><p><br /></p>

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