I have 4 of the parkerized English SA80 magazines for sale.
Three of the four have insertion marks. I would say they are in about 95% condition as far as the finish wear. The three mags with insertino wear have had rounds fired out of them, but not much. Maybe 120 each. The other has faint marks from being in my gun case, but otherwise is like new. It was loaded up with ammo, but wasn't used as best as I recall.
I'll sell them all for $75 shipped.