So I was just messing around with my change jar and I found this Penny that has a random raised o like it's a New Orleans mint mark but I know it's definitely not that and I didn't see any damage that would make me think it's pmd what's your thoughts?
Singular - Penny Plural - Pennies Some New Orleans Mint info https://en.m.wikipedia.org/wiki/New_Orleans_Mint Last year of operation was 1909
It does look like an O or 0 but alas, it appears to just be what the others are saying: a plating issue. Lousy zincoln.