@Yanks, I agree with @spruette that this is most likely just damage. You are right that there don't appear to be any scratches or grooves, but the metal has been squished as if from an impact.
"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


























