When I first saw this I thought someone had plyers and broke it or hit it with something. But if u look at the mint mark it's not a normal looking one. Did the place they make these at possibly do this when mistakes are made to keep it from going anywhere but this one got away? A few globs on it too. Oppinions? Sorry if I put this question in wrong Dept.
D mint marks on copper plated cents seem to suffer a lot with zinc rot. Your Cent is all damaged. Not a mint error of any kind.