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<p>[QUOTE=&quot;Just Carl, post: 125832, member: 4552&quot;]PVC is actually a fairly stable compound. I&#039;ve had coins in 2x2&#039;s for well into 30 and possibly 40 years. They are not in an invironment that instigates a reation with metals meaning low temperatures and very little humidity. Many of my 50 or more Whitman Classic Albums also contain sheets of plastic covering the coins and they also show no signs of contamination with the plastic. I may be jumping the gun so to speak by not waiting for a few hundred years though.[/QUOTE]</p><p><br /></p>

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