@kev, first welcome to CCF. I agree with the others that this is not a mint error. It looks most to me like mechanical damage, such as impacts to a flat head screwdriver or, if those gouges are matched, then perhaps gripping with wire cutters.
"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