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<p>[QUOTE=&quot;playpossum0985, post: 8341949, member: 23806&quot;]So here is a blank that has been through the annealing, washing and edge roll processes. </p><p><br /></p><p>In my humble opinion, if there are any striations on the planchet before washing, there should be at least some obliteration of these during the tumbling, just as created here. </p><p><br /></p><p>If the planchet missed the annealing process and did not get softened enough, there should still be some these random marks somewhere.</p><p><br /></p><p>Common sense would say these blanks went through annealing but somehow missed the washing process.</p><p><br /></p><p>[ATTACH=full]1479274[/ATTACH] </p><p><br /></p><p>Another random theory is the Philly mint uses a big tumbler to drain the planchets after annealing and quenching, so Philly blanks get an extra tumble. While Denver uses a scoop.... Interestingly, mine are all D Mint Quarters. Still, the washing process should do away with any discoloration and striations on the blanks... IMHO of course.</p><p><br /></p><p>But none of these can explain the 2022 D Maya Angelou&#039;s Obverse pattern.[/QUOTE]</p><p><br /></p>

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