SDH & jsfricks;
I don't know which is more gorgeous, the guns or the photography!
In the context of this thread, all pre models are Model of 1953 'New' I frames as opposed to Post war I frames and Improved I frames which both preceded the 'New' I frame. All three still have the short, 'I' size main-frame cyl window and cylinders. But Model of 1953 New I frames have the longer grip and larger trigger guard of the Model of 1953 J frame.
The I main frame was not extended to the J frame size until Oct 1960 for the 22/32s and 1961 for the rest of the I frames.
Notice both frame window and cyl lengths are identical in this comparison:
Postwar I frame Kit Gun (Top). An "Improved I frame" would look identical (but no Improved 22/32 Kit Guns were made).
Bottom is a Model of 1953 "New I frame" Kit Gun (pre mod 34). I frame size main-frame and cyl but full size J frame trigger guard and grip frame length (1/8" longer). Compare the amount of uncheckered wood below the checkering field.
This is a comparison of a Model 63 22/32 Kit Gun "J-Frame" (top), and a Model of 1953 "New I-Frame" 22/32 Kit Gun, a pre model 34 (bottom). Note the differences in frame length in front of the trigger guard and the cylinder length.