Recently picked up 2 Model of 1953 "New I frames" one in 38 S&W and this one in .22lr , Think I am slowly getting the I frame evolution,
Is this correct ?
1) I frame, 5 screws plus a strain screw
2) Improved I frame
3) 1953 New I frame , delete trigger guard screw, coil main spring, elongated trigger guard,
4) 1955 Bright blue finish standardized, delete upper sideplate screw.
4) 1956 3 screw frame
5) 1957 Model marking begins
6) 1960 change to J frame as the Model 34-1