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<p>[QUOTE=&quot;GDJMSP, post: 2104151, member: 112&quot;]David are you aware that there are coins in PCGS slabs that were actually graded by computer back in the early &#039;90s ? No, there&#039;s not a whole lot of them and they are all Morgans, but yes they do exist. However, anybody who has seen these coins graded by computer readily agrees that the system failed miserably. And even PCGS is of the same opinion.</p><p><br /></p><p>Since then others have tried to improve upon the system and if memory serves PCGS even tried it again several years later, but again gave up. And as recently as 2003 one young man even wrote his doctoral dissertation on a computer assisted grading system where the computer is used to get the human graders &quot;close&quot; to what the actual grade should be. But that system has never been adopted by anybody either, and for the same reasons - it doesn&#039;t work. The reason is doesn&#039;t work is that grading coins is inherently subjective and that subjectivity cannot be removed.</p><p><br /></p><p>And yes I realize that your point is to do away with all of those things and grade coins on a purely technical basis, a basis that can be measured by computer. Well, that is the oldest grading we have, it was the first grading system we had. And it was used for many years. And almost everybody in numismatics, including collectors, dealers, and scholars, agreed that that system failed miserably. And that of course is why market grading was invented, so that those subjective things, quality of strike, quality of luster, and eye appeal, could be accounted for.</p><p><br /></p><p>But accounting for those things is not the problem with today&#039;s TPG grading. The problem is two fold. One, that there is no universal grading standard accepted by everybody. The problem is that every TPG has it&#039;s own proprietary set of grading standards. And two, that they keep changing those standards, there is no consistency over time because they continually loosen their grading standards.</p><p><br /></p><p>Do away with those things and the market grading system will work just fine.[/QUOTE]</p><p><br /></p>

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