+1 on previous poster's info.
The 922/923 series are plain, no frills, utilitarian guns. I've owned both, still have a 923 made in 1950 and in my possession since '58 that has had thousands of rounds put through it with no trouble. At reasonable ranges, they will dispatch pests and put small game on the table.
There are discussions of the 922 and some tidbits about the 923 in the Handgun Forums on this site: look under Rimfire Handguns and Curio & Relic Handguns. The guns are basically the same, in my experience.
e-gunparts.com/forums will lead you to a thread that will tell what year a particular serial number and alpha prefix was manufactured.
It would help if you could tell us more specifically what info you needed.