Nice silver quarter! I believe it to be a Die Chip. Nothing really major unfortunately. Just a sign of die deterioration.
I don't see the slightest of PMD. A filled MM is the result of an interior die break. You coin only apartial of the center post of the D broke. Fun find @zmemarine
I’m seeing a scrape across the left side of the D. On he curved right side it also looks scraped but with a small, like tiny, amount of displaced metal. This is based on the first photo posted by the OP.