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<p>[QUOTE=&quot;Neal, post: 3281637, member: 43872&quot;]I&#039;m no expert, and I&#039;m probably wrong more times than I&#039;m right, but in my experience when there is that much displacement with mechanical doubling there is MD found elsewhere on the coin, especially in the area nearby.&nbsp; The reason, I would suppose, is that mechanical doubling is caused by a die &quot;bouncing&quot; or sliding, which would make doubling over much of that side of the coin.&nbsp; Here I don&#039;t see any sign of it except on the mint mark.&nbsp; (The OP&#039;s picture does not show the whole coin.) That would lead me to think RPM.&nbsp; If anything bounced it would appear to be the punch when punching the mint mark rather than the die when striking the coin.&nbsp; Help me out here if I&#039;m way off.[/QUOTE]</p><p><br /></p>

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