Picked this up the other day at a LGS for $140. It was wrapped in white camo Ace bandage tape. It's a 1933 Hex receiver. Not a Tula, don't know how to spell the name but I see people refer to them as IZZYS. Had a cheap repo PU scope and base. And a nice turned down bolt. I tried to shoot it with the repo scope, it was junk. Plus I had to crawl half way up the stack to get the eye relief correct. I put an old Weaver 1.5 X I had around on it. The screws in the rings and the mount for rough elevation had the slots stripped out. So I went to the Farm and Home store and bought metric cap screws to replace them. The mount had to much ground off for the left and right rough adjustment so I drilled and tapped a 10X32 cap screw into the mount to take the place of shims. The trigger is about the same as opening the door on a boxcar. I'll work on that tomorrow. Hope you enjoy the photos.
And just for giggles here's a PKM with me at thr trigger.