Definitely looks like some foreign substance on the surface of this coin--hopefully not PVC residue though. Is it kinda sticky? I agree with @marv that a soak in pure acetone might improve it.
"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