From everything I can tell, it is a k-22, but there is no k in the serial #.
On the bottom of the butt, the serial number is 659229.
I think it may be pre-war.
Inside the cylinder latch it reads 4665.
It is 6-shot.
Any help would be greatly appreciated.
I am new to the forum and also new to S&W. For a long time I wanted a .22LR Smith. I found one at a LGS last week, and I got it. It is a 17-3. The frame is in perfect shape, the problem is the cylinder has a little pitting-very little. I decided can not live with it. My options-so...