

This looks like a Model of 1950 to me. However, it was re-worked by Smith & Wesson in December of 1950 based on the markings on the left grip frame. The same serial number starting with “0” appears on the frame, barrel, cylinder and crane. The ejector has a different serial number.

I don’t know if the small diamond at the back, bottom corner has any significance. Same with the “46” up near the trigger guard.