Early Luger ID Needed

[lugercollector]

I have been offered a early Luger....and need some help on identification......it has the old style frame,toggles and grip safety......30 Cal....serial#89xx....DWM manufacture....Germany marked on Frame...no chamber markings...the interesting mark is a Swiss cross on the LH side of the Barrel in front of the receiver....the gun is in excellent condition with a holster original to the gun...any info and a possible value on this gun would be appreciated...Thanks....Peter...