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<p>[QUOTE=&quot;TheFinn, post: 2987202, member: 90102&quot;]What type of coin?&nbsp; I know that the rims are designed to be the highest point on a coin so that they will stack correctly, which was one of (not the most important) reason the UHR 1907 $20&#039;s were a problem - knifed rims.&nbsp; I&#039;ve seen bag friction as a notation, but not roll friction - unless an idiot is taking coins out of a roll incorrectly and sliding them out on each other.&nbsp; Then the edge of one coin will slip over the edge of another and across the surface.&nbsp; That isn&#039;t from being in the roll, but from being taken out of one incorrectly.[/QUOTE]</p><p><br /></p>

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