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Thoughts on cabinet friction from a professional grader.
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<p>[QUOTE="ToughCOINS, post: 3502889, member: 20480"]I'll throw in my two cents here regarding the difference between lightly circulated coins and truly uncirculated coins having either cabinet friction or stacking friction.</p><p><br /></p><p>Stacking friction and cabinet friction generally result from coins sliding against another coin or a flat surface, removing material only from the high points . . . Generally the tops of the central devices and the rim.</p><p><br /></p><p>Circulation involves contact with more than just the high points, and invariably causes some level of wear in the wide open fields.</p><p><br /></p><p>When on the border between circulated and not, it is the presence or absence of wear in the fields which I use to decide which category the coin belongs in . . . The only exception I make is for gold, which is a different animal unto itself.[/QUOTE]</p><p><br /></p>
[QUOTE="ToughCOINS, post: 3502889, member: 20480"]I'll throw in my two cents here regarding the difference between lightly circulated coins and truly uncirculated coins having either cabinet friction or stacking friction. Stacking friction and cabinet friction generally result from coins sliding against another coin or a flat surface, removing material only from the high points . . . Generally the tops of the central devices and the rim. Circulation involves contact with more than just the high points, and invariably causes some level of wear in the wide open fields. When on the border between circulated and not, it is the presence or absence of wear in the fields which I use to decide which category the coin belongs in . . . The only exception I make is for gold, which is a different animal unto itself.[/QUOTE]
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