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1970 D Quarter struck on dime stock?
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<p>[QUOTE="-jeffB, post: 2622213, member: 27832"]According to the chart, a quarter struck from dime stock should weigh 4.16g; 4.2g is plenty close enough. A .04-g discrepancy is well within tolerance; in fact, if they print it that way on the slab, it implies that they only weighed it to the nearest tenth of a gram, in which case it's <i>exactly</i> right (for that level of precision).</p><p><br /></p><p>A quarter struck from nickel stock would weigh 6.54g, well over the normal 5.75g. It would also be a super-bold strike, because nickel stock is <i>thicker</i> than quarter stock. (Not sure of the exact measurements, but the standard thickness of a finished coin is 1.95mm for nickels, 1.75mm for quarters; I'd expect the stock to be proportional.)</p><p><br /></p><p>Wearing such a quarter down enough to lose <i>over a third</i> of its weight would take it down to a featureless slug. The flattest, slickest Barber dime I've ever weighed hadn't lost more than 20% of its weight.[/QUOTE]</p><p><br /></p>
[QUOTE="-jeffB, post: 2622213, member: 27832"]According to the chart, a quarter struck from dime stock should weigh 4.16g; 4.2g is plenty close enough. A .04-g discrepancy is well within tolerance; in fact, if they print it that way on the slab, it implies that they only weighed it to the nearest tenth of a gram, in which case it's [I]exactly[/I] right (for that level of precision). A quarter struck from nickel stock would weigh 6.54g, well over the normal 5.75g. It would also be a super-bold strike, because nickel stock is [I]thicker[/I] than quarter stock. (Not sure of the exact measurements, but the standard thickness of a finished coin is 1.95mm for nickels, 1.75mm for quarters; I'd expect the stock to be proportional.) Wearing such a quarter down enough to lose [I]over a third[/I] of its weight would take it down to a featureless slug. The flattest, slickest Barber dime I've ever weighed hadn't lost more than 20% of its weight.[/QUOTE]
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