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<p>[QUOTE=&quot;borgovan, post: 887696, member: 13016&quot;]Joey, a coin still can tone even if it&#039;s slabbed, although it is likely to do so at a much slower rate. Most slabs are not 100% airtight, but they are close. The less exposure to air and contaminants (sulfur), the slower the rate of toning. </p><p>&nbsp;</p><p>BR549: I did hear quite a bit of this from dealers at the MSNS show. They were saying how tough it is to get nicely-toned material slabbed during the last several months. This is all secondhand information, as I haven&#039;t submitted anything myself recently, but I heard from at least half a dozen dealers that NGC and PCGS are refusing an awful lot of material. That&#039;s why I was happy to have this one in a newer NGC holder.[/QUOTE]</p><p><br /></p>

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