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<p>[QUOTE=&quot;Hobo, post: 997817, member: 11521&quot;]Mintmarks were hand-punched into working dies until about 1990. Beginning about 1990 the mintmarks were added to the Master Hubs. (I don&#039;t have the exact date of the change. A few years earlier mintmarks were added to the Master Hubs for Proof coinage.) So since about 1990 the mintmark location is the same on every coin in a particular series.[/QUOTE]</p><p><br /></p>

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