@tlpok, first welcome to CCF. Second, it might be a retained interior die break, but it also could be a plating blister as I see the underlying zinc around it. Please see if this "bump" can be depressed with a wooden toothpick. If not, then I'm thinking you have a RIDB worthy of saving in a 2x2.
"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

























