Steve, was in a hurry (in class all week, maybe I should just pay attention to the class
).
Don Hallock has kept a list up for years, you look up and try to find a missing mag for your gun. I have never found a match, but its fun to try.
Jan Still has written five books on the Luger and Axis pistols, I feel his are the best books around for overall info, pictures, etc.
Ed