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Eould anyone be able to tell me the approximate time a coin can be kept in one of these holders befo
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<p>[QUOTE="Conder101, post: 4950640, member: 66"]One thing that helps is to "oversize" you 2X2's. In other words put the coin in the next size large holder. The reason is when you put them in the holder they were "intended" for it can cause stretching and tiny holes in the mylar at the edge of the coin. These tiny holes let in air and cause localized toning. In the image Desertgem posted above, I'm not seeing any degradation of the staples so I would suspect those dark toning spots are cause by tiny holes in the mylar where it got stretched at the edge of the coin by the stapling. (Silver dollars really need the 2 1/2 X 2 1/2 crown size holders.)</p><p><br /></p><p>But keeping them in a cool DRY environment will also ensure that the coins will stay good for a long long tme.[/QUOTE]</p><p><br /></p>
[QUOTE="Conder101, post: 4950640, member: 66"]One thing that helps is to "oversize" you 2X2's. In other words put the coin in the next size large holder. The reason is when you put them in the holder they were "intended" for it can cause stretching and tiny holes in the mylar at the edge of the coin. These tiny holes let in air and cause localized toning. In the image Desertgem posted above, I'm not seeing any degradation of the staples so I would suspect those dark toning spots are cause by tiny holes in the mylar where it got stretched at the edge of the coin by the stapling. (Silver dollars really need the 2 1/2 X 2 1/2 crown size holders.) But keeping them in a cool DRY environment will also ensure that the coins will stay good for a long long tme.[/QUOTE]
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Eould anyone be able to tell me the approximate time a coin can be kept in one of these holders befo
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