Very strange car.
most correct prewar parts.
engine , radiator, cast iron cylinderhead,waterpump,Dashboard incl clock,speedometer and oilpresure meter, steeringwheel ,Chassis, shock absorbers .
The are all prewar 170v parts.
Frontfenders,Radiatormask,and Motorhood also 170v
But the shape of the body and the size of the frontwindow are not regular 170v.
Dou you know the function of those 2 holes in the rear ?
The size of the front window looks post war, can you open it ?
I also ask the people on the German forum to help you.