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<p>[QUOTE=&quot;desertgem, post: 815927, member: 15199&quot;]<p style="text-align: left"><span style="color: #000000"></span></p> <p style="text-align: left"><span style="color: #000000">Personally , I have never seen any OGP that I had suspicions of plasticized PVC construction, so I am fairly sure they will not contribute to PVC damage of the contained coins. However, I am convinced that such packaging, not being air tight, will exchange air and humidity ( water vapor), and can be toned or corroded within OGP over a period of time determined by environmental conditions. Cellophane does contain pores that allow such exchange, so hard plastic holders that only allow limited exchange on the edges should be more resistant to toning. I would <b>guess</b> hard lenses would be better of the two.</span></p> <p style="text-align: left"><span style="color: #000000"><br /></span></p> <p style="text-align: left"><span style="color: #000000">Jim</span></p> <p style="text-align: left"><span style="color: #000000"><br /></span></p><p>[/QUOTE]</p><p><br /></p>

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