Well cool. I like interesting. I pulled the toggle and firing pin out and got some more pics. I'm wondering, how would you tell if the toggles are original or if they were machined out to replicate dished toggles? I know they aren't original to this frame.
The number here you can see is 01. The firing pin matches the toggles.
I apologize for the poor quality of this one. In this orientation it appears to be an upside down "P" then below is a rightside up "6" and under that a rightside up "5".
These are pretty much the only markings on the barrel.
