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<p>[QUOTE=&quot;GDJMSP, post: 177297, member: 112&quot;]No, there is no universal grading standard follwed by all of the TPGs. Each TPG has its own set of grading standards that they use.</p><p>&nbsp;</p><p><br /></p><p><br /></p><p>Not really discussed by the ANA itself, but it has ben discussed by collectors and in the numismatic press for many years. But there is an inherent problem with the idea - you would have to get all of the TPGs to agree to follow a universal standard. They will not.</p><p>&nbsp;</p><p><br /></p><p><br /></p><p>Yes, each TPG, at least the top 4, each have their own system in place if a submitter disagrees with the grade assigned to a coin. The submitter can re-submit the coin, pay additional fees, and the TPG will review the coin again. If the TPG thinks they made a mistake the first time, they will re-slab the coin at its new grade and if the new grade is lower the TPG will refund the difference in market value to the submitter. Of course it is the TPG who decides what the market value is.</p><p>&nbsp;</p><p><br /></p><p><br /></p><p>The top 4 do offer a guarantee. See my previous comment above.</p><p>&nbsp;</p><p><br /></p><p><br /></p><p>The slabs used by NGC, PCGS and ICG are tamper proof. I do not know of even one single case where one of these company&#039;s slabs has successfully been opened and the coin inside replaced without it being easily seen that the slab was tampered with. The old style slab used by ANACS was tamper proof as well, but there have been many reports that the new style ANACS slab can be easily opened.[/QUOTE]</p><p><br /></p>

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