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<p>[QUOTE=&quot;Rhazada, post: 4296726, member: 111630&quot;]Another useful update: I weighed several genuine US coins from my collection to evaluate loss of mass or lack thereof.</p><p>An xf trade dollar and BU morgan yielded accurate red book weights (take that as you will) even with my scale as it is now. The trade dollar was indicating maybe 0.1g loss. Weighed a vg uncleaned barber half, it weighed in at 12.1/12.5 (I’ll use red book weights for consistency in my evaluations, though I understand true coin weights will vary slightly). Weighed a cleaned g liberty seated half, came in at 11.8/12.44, and an ag coin even lower. An uncleaned vf liberty seated quarter came in at ~6.1/6.68.</p><p>Given even these numbers, I cannot dismiss the possibility that the weight difference is in some way due to metal loss over time as the coin was circulated. Indeed, it could even indicate the coin weighed in on the higher side, assuming that large silver coins like this wear similarly to smaller US coins. I only have one worn US dollar coin (uncleaned F seated liberty dollar) to compare and even that coin showed a weigh-in at 26.3/26.73. For the size compared to the other coins, it lost less mass percentage-wise than the rest. Thoughts? Feel free to critique me if you feel I am not considering other factors, ultimately I am here to learn <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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