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<p>[QUOTE=&quot;-jeffB, post: 2028029, member: 27832&quot;]I&#039;m curious whether that study was done recently, or in the days of silver coins. &quot;Heavily circulated&quot; clads tend to maintain more of their weight.</p><p><br /></p><p>I found that dimes can lose up to 20% of their weight (these were admittedly circulated &quot;much more than average&quot;). Slick Barber or Standing Liberty quarters could be 10% down; slick Barber halves tended not to lose even that much, maybe 5-7%, I think. This isn&#039;t surprising -- coins lose metal from friction over their surface, and the smaller the coin, the greater its surface area relative to its weight.</p><p><br /></p><p>I really should go back and weigh more coins.[/QUOTE]</p><p><br /></p>

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