Picked this up earlier in the week for next to nothing, it was nonfunctioning when I got. Someone along the line had lost the cylinder center lock pin, replacement came in todays mail and she is working again! Mfg. 1978, no end shake, lockup is very tight despite it's rough appearance mechanically in excellent shape. Have a red ramp front site and white outline rear on the way for it, and next up is finding someone locally who can give it a bead blast to get rid of some of the light pitting that is on the cylinder.