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Message:: [QUOTE="GDJMSP, post: 1073319, member: 112"]But as I have said before, there is no way, none at all, to distinguish roll friction (or any of the others) from light wear due to actual circulation. It simply cannot be done. No Paul it isn't. Since day one of the existence of the TPGs cabinet/roll frcition have been an accepted fact on MS coins. Same for the ANA grading standards. Where the difference lies in that in todays world any coin with light wear is now considered as low grade MS. In today's world for a coin to get an AU grade it almost has to be devoid of luster and have extensive wear, not only on the high points, but in the fields as well. That is the thing that has changed ! It used to be, and not so long ago, that only a few coins with light wear on the high points only could be found in low MS slabs. There's a reason for that - the high points are the only places where it is possible for a coin in a roll or a cabinet to get light wear on them. Today the coin might have light wear virtually anyplace an still it is graded low MS.[/QUOTE]