This is the German Naval Jack (Kriegsschiffgösch) of 1903-1918. Its colors are black, white and red, with an Iron Cross in the center. In use since the 13th century, a Black Cross on a white background was used by medieval Teutonic Knights.
Axis Power Nazi Flags for Sale, German (NSDAP) NAZI Party
German Jack Flag 3 X 5 ft. Standard
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