[mrerick]

This pin has the fluting cuts of a WW-II Mauser firing pin. That's quite a battering it's taken. Something hard and sharp has been rubbing that firing pin. How does the rest of the action, receiver and frame look? What does the sear lever look like? In failure, if it were cocked with a round in the chamber, and the front end of the pin separated from the sear portion, you would have had a discharge. That's one good reason for always keeping a firearm pointed in a safe direction!