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<p>[QUOTE=&quot;RonSanderson, post: 2536917, member: 77413&quot;]I see what you mean. If those marks are from polishing the die, then could a polished die be flatter than it originally was, and not be as effective at creating the metal flow that creates cartwheel luster?</p><p><br /></p><p>On some other Lincolns with great luster I can easily see the dished curvature of the surface. (I can even see it in some eBay pictures, like this one I shamelessly &quot;borrowed&quot; from a dealer I have used...)</p><p><br /></p><p>[ATTACH]543005[/ATTACH]</p><p>&nbsp;</p><p>On the 1920-S, not so much.</p><p><br /></p><p>[USER=19165]@physics-fan3.14[/USER] - I based some of my thinking on your book... Is there any chance I am making sense?<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie26" alt=":bookworm:" unselectable="on" unselectable="on" /><img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie26" alt=":bookworm:" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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