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<p>[QUOTE=&quot;SuperDave, post: 2452569, member: 1892&quot;]If we had such an exact standard, there&#039;s no doubt they would both meet that standard to ISO 9001 quality. They&#039;re not unskilled. But - and this is the point which makes your question moot -<b>there is no such accurate grading standard</b>. </p><p><br /></p><p>If there were, TPG&#039;s wouldn&#039;t be necessary because any halfway committed numismatist would be able to reliably grade coins without them.</p><p><br /></p><p>To answer the underlying question, expressed as a percentage I&#039;m willing to bet they get the overwhelming majority of grades correct to a standard you and I wouldn&#039;t argue with. We only get to see the egregious errors online, not the thousands upon thousands of the ones they got &quot;right.&quot; Heck, a majority of the &quot;GTG&quot; threads here end up with the membership in general agreement with the TPG, and a lot of them are posted because of the OP&#039;s dissatisfaction with the grade.[/QUOTE]</p><p><br /></p>

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