My grandmother has this penny and thinks it is an error. Thought I might as well go to trustworthy CoinTalk and see what they say.
No offense taken. Yes. Register and show the full coin, both heads and tails side, here: https://board.conecaonline.org/.
Why didn't you wait before you called it PMD? Huh? Huh? He'll get his answer at CONECA if we're all over the place on it...
Look, don't be offended, but I don't run that joint. I was just a contributor there, years ago. Figure out how to contact them, then give them your issue. Or, if you can't figure that out, wait here and see what others drop in and say. That'd be my advice.