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<p>[QUOTE=&quot;Hobo, post: 983856, member: 11521&quot;]Before about 1990 (sorry, but I cannot recall the exact date) mintmarks were hand-punched into the working dies. If the working die was doubled the doubling would not affect the mintmark because the mintmark was added to the die after the die was completed. So, to answer your question, if the date and mintmark are both doubled that would usually be an indication of strike doubling (aka machine doubling). Be aware that the mintmark could be repunched (RPM).[/QUOTE]</p><p><br /></p>

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