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<p>[QUOTE=&quot;GDJMSP, post: 696528, member: 112&quot;]The very same thing you mention - all the graininess. Those coins are literally covered with pimples, bumps and shallow pits. You just don&#039;t get that with struck coins. And it&#039;s not gonna come from bad planchets either.</p><p><br /></p><p>Think about it, a planchet is rolled under great pressure. So any pimples or bumps are wiped out. The pits might remain, but not the bumps. Then the planchet is struck, under even greater pressure which would again wipe out any raised area on the planchet.</p><p><br /></p><p>Now if they were struck with a rusty die, yeah, you can have pimples and bumps here &amp; there. But they do not cover the entire coin and they are not uniform in nature.</p><p><br /></p><p>Now if the only place that these pimples and bumps appeared was in the devices, then I would say that they might have used spark erosion dies. But when they are found in the fields and in particular on the rims - which are the easiest areas of a die to polish smooth and flat before use - then I would say that dies are unlikely. Therefore casting is the most likely method.[/QUOTE]</p><p><br /></p>

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