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<p>[QUOTE=&quot;GDJMSP, post: 710085, member: 112&quot;]Copper is so reactive, and it&#039;s been so long since we&#039;ve had this composition, that we have forgotten how quickly these coins can and will change. Even the mint forgot. I would even hazard a guess that many were not even old enough, perhaps even born yet, when we last had these to have ever noticed it.</p><p><br /></p><p>It takes very little for copper to turn brown, days even under the right conditions. I would guess that Billy&#039;s scenario is quite possible.[/QUOTE]</p><p><br /></p>

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