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<p>[QUOTE=&quot;Burton Strauss III, post: 24901207, member: 59677&quot;]Which is why I included a microscopic examination.</p><p><br /></p><p>I&#039;m guessing, but it has to come from a deeper understanding of the minting process.</p><p><br /></p><p>A tapered planchet is cut from a tapered strip of metal. The taper comes from the rollers having less metal to work on. But it&#039;s smooth metal to smooth metal.</p><p><br /></p><p>Abrasion on a parking lot is much rougher and more localized.[/QUOTE]</p><p><br /></p>

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