"Bob La Londe" wrote in message
...

It was a piece of crap even back then. ...I can see through the
stock mounting bolt hole in the frame and the threads are buggered
in there like somebody drove a machine screw in there that was too
long at one time.


Your description strongly suggests that the brass pin isn't original.
Perhaps it was hacked in by someone who lacked the lathe to turn a
proper steel pin.