I can't tell as I stated earlier. If you could blow up the photos and post full size ones that would help. My best quess at this point is it is a die clash.
MD is Machine Doubling which is due to a loose die moving at the time of the strike and giving a slight shelf doubling look to some of the devices.
I wonder when "one" would make it's presence known and here we have Mr. Rorschach. Serious comments please.
Serious comment, you have some disturbance in the surface of the coin from some unknown cause which doesn't appear to be due to the mint and you are trying to see the bunny rabbit in the clouds.
Die Clash? I had to look in the mirror and stand on my head... but is that where Pluribus would be (backwards)? Cant recall ever hearing of only that clash mark.