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Olszak Nowy, Fw.

Olszak Nowy, Fw. is a place, that 1919 belonged to Poland and was situated in the administrative region Pułtusk.
Olszak Nowy, Fw. was formerly part of the German Empire. In the German Empire, the place was called Olszak. The place is now called Olszak Nowy and belongs to Poland.