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<p>[QUOTE=&quot;calcol, post: 24629575, member: 77639&quot;]First a definition for current discussion:&nbsp; “CAC slab” means a coin in a slab of CACG; it does not mean a PCGS or NGC slab with a CAC sticker.&nbsp; If presented with a coin in a CAC slab, initially all you know is CAC’s grade for it.&nbsp; Now it might be possible if someone tells you about the coin’s history to know whether it was graded previously or if the coin is uniquely identifiable in photographs, it might be possible to track its history.</p><p><br /></p><p>If a coin is in a PCGS or NGC slab with a CAC sticker, initially you know it has been graded by PCGS or NGC plus CAC … i.e. graded by two independent grading services.&nbsp; Now it might be possible if someone tells you about the coin’s history to know whether it was graded previously or if the coin is uniquely identifiable in photographs, it might be possible to track its history.</p><p><br /></p><p>Cal[/QUOTE]</p><p><br /></p>

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