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<p>[QUOTE=&quot;-jeffB, post: 26101626, member: 27832&quot;]When I was measuring coin weights, I found that well-worn Morgans usually lost well under 10% of their weight. Same with half dollars; to get below 11.5g, you had to be looking at a super-slick Barber (and I <i>do</i> have some of those).</p><p><br /></p><p>But <i>proportional</i> weight loss increases the <i>smaller</i> the denomination, because it seems to be proportional to <i>surface area</i>, not weight. Smaller coins (or anything else) have more proportional surface area than larger ones. I found Barber dimes that were below 2g, a 20% loss.[/QUOTE]</p><p><br /></p>

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