I found this one in the one spam can I had that came with the ammo packed on en blocs. This is the coveted Winchester Repeating Arms Educational clip. It has seen some stuff, it is pitted and ruff to the touch all over, certainly reparked at some point in its existence.
This is like finding the decoder ring in your first ever box of Cracker Jacks. So I will likely be doomed from here out to end up with spam cans full overly parkerized L&H clips for the rest of my life. So it goes.