1993 US cent Double mint mark question.
emeraldATV
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Cant find it any where.
First, is it?
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The mint stopped individually punching mintmarks into dies in 1989 so your 1993 cannot have a RPM. I think they are added to the working hub now (somebody please correct the mm placement if I'm wrong)
Possibly split plate doubling on your Zincoln. The plating was breached and your seeing darker surfaces of the exposed zinc starting to corrode. Split plating is common in the mm area.
Nice pic.
Excellent denticles! I would say the adjectival grade on this is quite strong.