This is pmd right? It's just strange because it's pretty smooth. I rinsed it in acetone to see if someone may have coated it with something like a clear coat nail polish or something and it's still the same. Is it a vise cent?
Without seeing the coin in-hand, I'm 99% confident this is indeed PMD -- it looks like the coin was hammered onto a gritty sidewalk or something. From everything I can tell in this photo, those marks came along after the coin/design was struck.
Thank you for the photos and for reaching out... Best wishes!