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<p>[QUOTE=&quot;desertgem, post: 755999, member: 15199&quot;]The hard plastic holders that you show, do not initiate the damage. PVC to be flexible ( unlike the hard PVC tubing for lawn watering sytems) has to have chemical plasticizers, and it is those that cause the initial damage to the coin. So flexible flips, pages, etc, are what one must find it it is PVC ( possible harm), and not mylar or polypropylene, etc.</p><p><br /></p><p>If a coin has damage started, and transferred to hard ( or safe flexible) plastic, it still can continue the damage if moisture and environmental factors are present, so a watchful eye is the best protection in the long run.</p><p><br /></p><p>Jim[/QUOTE]</p><p><br /></p>

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