Luger without markings?

[guw3ch]

Hello, this is another Luger i would appreciate your help identifying and give some idea what is a reasonable price to ask for.
It has no id numbers and is mixed with 2 sets of serial numbers.
Firing pin does not have any numbers ,toggle pin has no number.
Magazine,barrel,trigger,release,toggle, side plate(on bottom)3174 b have all the same serial number. The receiver 3859 b and the rest of the numbered parts are the same. Could this be a DMW which assembled from parts 1930's for the police ?
it is in excellent condition besides the million dollar chip.The grips have no number inside except a S/42 stamp.
As always ,thank you for efforts
Guenter