Could be MD, but since it is all skewed toward the rim, I'm thinking DDD instead plus the split plate doubling and trapped zinc dust as noted by @jimm.
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz


































