Odd Rear Toggle Pin

[Thor]

Since most of the early rear toggle axle pins were fire blued and fire bluing is not very durable I would imagine it might be worn off, this part also sometimes rubs inside the frame ears on some pistols during firing. The grip screws usually tarnish a bit after the fire bluing wears off on old pistols. The other thing I see occasionly is where someone has cut the rim off the pin. Now that is odd!