@LM2, definitely not a mint error, but some sort of surface staining. My best guess is that this is soot from being in a flame, but it could be any one of a number of things. You can safely spend 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

























