Was doing some historical research on the Model 1896 Mauser, AKA the "broom handle" or "red 9," but I was unable to find one piece of info: in what year was the 9mm version first put into production? The 7.63x25mm was introduced in 1896 (fancy that!), but none of the historical sites I have visited mention when the changeover to 9mm Parabellum occured.