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<p>[QUOTE=&quot;Conder101, post: 3029373, member: 66&quot;]They do use some equipment but about the only thing are what are called riddlers, vibrating screens with different size holes. One with undersized holes lets fragments, scraps, and clipped planchets fall through. Then another with properly sized holes lets properly formed coins fall through, leaving any oversized pieces such as broad strikes off centers. The good coins move on, the rejected pieces go back to the scrap bin.[/QUOTE]</p><p><br /></p>

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