1908 Commercial date of manufacture?

I just purchased a 1908 Commercial and I am trying to gather more information on it. I would really like to find out how to link the serial number to the date of manufacture. Do any of you folks know if there is a listing of this somewhere. I have looked in two books but so far no luck. I am happy to have found a forum with such helpful people and interesting topics. Sorry to admit it, but I shot my Luger for the first time last week and I am hooked!!! Thanks!


Ron