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Black spots in UNC Sets
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<p>[QUOTE="cladking, post: 1534987, member: 68"]Pre-'85 US mint sets have a thin layer of PVC plastic inside against the coins. This is especially hard on cents and especially on 1968-P cents, all of which are now spotted. Clads and nickels are not immune and the worst of these is the '69-D quarter. </p><p><br /></p><p>Over time I expect the Ikes to be a major loser to corrosion but for now they aren't too bad. In an accelerated enviroment the Ikes look bad.[/QUOTE]</p><p><br /></p>
[QUOTE="cladking, post: 1534987, member: 68"]Pre-'85 US mint sets have a thin layer of PVC plastic inside against the coins. This is especially hard on cents and especially on 1968-P cents, all of which are now spotted. Clads and nickels are not immune and the worst of these is the '69-D quarter. Over time I expect the Ikes to be a major loser to corrosion but for now they aren't too bad. In an accelerated enviroment the Ikes look bad.[/QUOTE]
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Black spots in UNC Sets
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