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<p>[QUOTE=&quot;cladking, post: 376986, member: 68&quot;]There&#039;s a lot of variation in the thickness of coins from year to year and mint to mint.&nbsp; There&#039;s not much variation at a given mint during the year but it&#039;s not unusal for some BU rolls to spill over the top of a standard size coin tube and others to need a lot of padding to keep them from bouncing around.&nbsp; </p><p><br /></p><p>There&#039;s also a condition where, apparently the metal gets up between the edge of the die and the collar.&nbsp; The mint calls this &quot;finning&quot; and is a serious problem because such coins can be too thick to work in machines and counters.&nbsp; This isn&#039;t the entire rim which is high but just the outer edge of the rim.&nbsp; </p><p><br /></p><p>You rarely see specifications for coin thicknesses because this is the result of designs and striking characteristics.&nbsp; Planchets are a given thickness but coins have a lot of variability.&nbsp; In the case of circulating coinage much of this variability ios caused&nbsp; by simple wear.&nbsp; As coins wear their rims give up metal preferentially and the coins get very thin very fast.&nbsp; If you don&#039;t believe it compare a roll of circulated 1965 quarters to a roll like BU &#039;88-D.&nbsp; ...or a roll of AG Barber halfs to a BU walker roll.&nbsp; The difference in weigh isn&#039;t so great but the thickness is.[/QUOTE]</p><p><br /></p>

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