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<p>[QUOTE=&quot;Conder101, post: 4597719, member: 66&quot;]Yes there is.&nbsp; Grade is determined by wear, and for MS by strike/surface marks.&nbsp; Wear is determined by examination of the high points to see if wear has occurred and the surfaces for luster breaks.&nbsp; Planchets DO have high, and they do have a form of &quot;luster&quot;.&nbsp; </p><p><br /></p><p>When the blanks are upset it forms that raised &quot;proto-rim&quot;.&nbsp; That is a high point which when worn develops a flat area at the top point.&nbsp; With more wear the flat point gets broader.</p><p><br /></p><p>Luster on coins is radial, luster on blanks or planchets is linear, but both are caused by the same thing. movement or stretching of the metal across a microscopically rough surface.&nbsp; On coins it is the surface of the die, on blanks and planchets it is the surface of the strip rollers.&nbsp; On planchets with wear that luster first disappears on the high points, and then it starts dulling and disappearing in the center.</p><p><br /></p><p>Then there are surface marks.&nbsp; Planchets that leave the mint tens to do so in the same bags as coins and will pick up the same type bag/surface marks.[/QUOTE]</p><p><br /></p>

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