I have a 1915/1920 double date Luger #6759b my father acquired during WW2.He was in the 3rd Army(Signal Corps) and was between Ragensburg and Chiem when he took it from a DP(displaced person)heading west from the direction of Czechoslovakia in the spring of 1945..It has one matching nickel,crimped wood base mag., sear safety, and an army holster converted to Police style.Holster maker is not very readable. I can make out 1915 and Potsdam. Grip strap is marked as follows: K.L.j.66 The small case j is backwards( small case T?) . The mag., holster,& tool are unit marked. Serial # 6759 b is also on the tool and holster. I'm curiuos as to what police unit this weapon might have issued to. Any help/clues would be greatly appreciated.