2016 Harpers Ferry, On Celing Of the Tower. PMD?

So here are a couple photos of a 2016 Harpers Ferry, There is something interesting going on. How do you think this one happened? Is it PMD?
1
So here are a couple photos of a 2016 Harpers Ferry, There is something interesting going on. How do you think this one happened? Is it PMD?
Comments
Interesting.
And truth be told, I am very impressed with your pictures and wondering as to what sort of photography equipment you are using.
Cheers.
https://www.pcgs.com/setregistry/u-s-coins/quarters/PCGS-2020-quarter-quest/album/247091
Hello, I am using my cell phone amsung Galaxy 21 Phone for the full coin photos, and the Dcorn Digital Microscope for the close up photos.
Are you referencing the faint line on the inside of the tower ceiling? Looks like a support beam? If not, what feature concerns you? Cheers, RickO
to the best of my knowledge There is no support beam in the design
@arby96... Thanks... Was not sure what specifically you were referencing. Cheers, RickO
Interesting, die gouge maybe? Do you have others to check the same feature area? Peace Roy
BST: endeavor1967, synchr, kliao, Outhaul, Donttellthewife, U1Chicago, ajaan, mCarney1173, SurfinHi, MWallace, Sandman70gt, Ricko, mustanggt, Pittstate03, Lazybones, Walkerguy21D, coinandcurrency242 , thebigeng, Collectorcoins, JimTyler, USMarine6, Elkevvo, Coll3ctor, Yorkshireman, CUKevin, ranshdow, Jzyskowski1, CoinHunter4, bennybravo, Centsearcher, braddick, Windycity, ZoidMeister, mirabela, JJM, RichURich
No this is the only one so far I have located. This coin has a lot off issues. The verities of issues on the Harpers Ferry are many. I hoping to locate another one. I understand these are low level and are not worth much value. I just want to know how it happened.