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Birkenau O.S.

Birkenau O.S. is a place, that 1939 belonged to German Empire and was situated in the administrative region Tost-Gleiwitz.
Birkenau O.S. was formerly part of the German Empire. In the German Empire, the place was called Birkenau O.S.. The place is now called Brzezinka (Gliwice-Brzezinka) and belongs to Poland.