Definitely interesting to look at but I agree that it most likely is the zinc core starting to deteriorate after some holes formed in the copper plating.
"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
Edited by Spence
02/13/2020 08:13 am