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<p>[QUOTE=&quot;mralexanderb, post: 1119713, member: 7851&quot;]Both PCGS &amp; NGC slabs are sonically sealed where the plastic is fused together. They call this &quot;tamper evident&quot; not tamper proof. Once you crack out a coin from one of these slabs it&#039;s all over for that slab. You&#039;d have to re-submit the coin for a grade.</p><p><br /></p><p>Bruce[/QUOTE]</p><p><br /></p>

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