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<p>[QUOTE=&quot;Oldhoopster, post: 3732274, member: 84179&quot;]Not sure I understand your comment, but overweight/underweight coins that are not PMD are usually caused by a mistake in the strip rolling process.&nbsp; This is the part of the manufacturing process where the metal sheet stock is rolled to the specified thickness.&nbsp; If it&#039;s rolled a little thinner or thicker, then the punched planchet and subsequently the coin will be lighter or heavier.&nbsp; In some cases, it&#039;s rolled to a specified thickness, but for the wrong coin, i.e. Dime to the quarter thickness spec.&nbsp; In this case, you can calculate what the resulting weights should be for this type of error.&nbsp; Hope this clarifies things[/QUOTE]</p><p><br /></p>

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