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<p>[QUOTE=&quot;Clawcoins, post: 3732273, member: 77814&quot;]Knowing the ENTIRE minting process helps one understand under and over weight coins.</p><p><br /></p><p>We&#039;re not talking about when the coins are stamped with the designs but more at the beginning when the rolls of metal are originally produced.&nbsp; They can be rolled slightly thin or thick and thus be underweight or overweight based on the depth of the metal sheet before it gets stamped into blanks.&nbsp; This is the reason why coins will vary in weight.</p><p><br /></p><p>Back when hand feed short metal sheets were used normally at the beginning or end of the sheets it was thin.&nbsp; So one would get underweight blanks even though they at times would destroy the blanks cut out from the edges of short hand fed sheets.</p><p><br /></p><p>This excludes circulation wear, which removes metal and thus a coin gets lighter, or any other damage than can remove metal (such as exposure to acidic environment where some metal such as copper is removed).&nbsp; Even surface pitting and parking lot heavily scratched&nbsp; finds is removal of metal.</p><p><br /></p><p>Other damage such as plating which adds metal, or dirt, glue, solder, etc that can add weight.[/QUOTE]</p><p><br /></p>

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