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<p>[QUOTE=&quot;-jeffB, post: 1514652, member: 27832&quot;]And those who do will be able to show you that a fingerprint weighs more than non-black toning, most likely. The sulfur in &quot;colorful&quot; toning will add less weight than any visible dirt or debris. And all of these are much smaller than the normal tolerance in planchet weight, never mind weight loss due to wear.</p><p><br /></p><p>(Of course, coins with gum or glue stuck to them will weigh more.)[/QUOTE]</p><p><br /></p>

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