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<p>[QUOTE=&quot;Conder101, post: 8062868, member: 66&quot;]Technically an overmintmark on a 1990 quarter could be possible, but it would exist on every coin from the die and none have ever been seen after almost 30 years so it is VERY highly unlikely.&nbsp; The only way it could happen would be as a doubled die with the die being hubbed from a hub for one mint and then hubbed from a hub used for the other mint.&nbsp; After 1997 it would be impossible because after that date the P hubs were in Pennsylvania, and the D hubs were in Colorado and then around the same time they went to the single squeeze hubbing.[/QUOTE]</p><p><br /></p>

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