Hi everyone, I've been doing some searching here but haven't answered my question yet. I have an old K-22 that was my grandfather's; he was a farmer and used it, often carrying it around in a leather holster, and that shows a bit.

I can't figure out exactly what it is because it's a 5-screw, 6" with target sights, but no sight rib and the 6-digit serial has no "K" prefix (645XXX). Everything matches, though.

It's a "one-liner", so early production (pre-'48?). I can't find a photo of anything similar; the lack of sight rib seems odd, and the grips are unusual. Can anyone help out? I'll try and post a photo here...



Any information would be much appreciated!