I found this 1988 Lincoln Penny with what appears to be doubling on the D mint mark. Would this be a doubled die, RPM or PMD? Thank you so much for your help!
Please point out exactly where, besides the mintmark, that you see doubling, them provide a closeup in that area. Your mintmark looks like Machine Doubling to me, but additional photos could tell differently.
This may have been a contact mark. I didn't see a match on coppercoins. But if the east loop of the mintmark was affected, we should see the same thing happening on the up right area as well. https://www.coppercoins.com/lincoln...ie_state=mds If there were several examples like your coin, it could be a RPM. But if there is only one, then it is probably contact damage. See if the outer edge of a coin could affect that area like this? (Try smallest coins first)
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