This is the flag of the Ordnungspolizei (OrPo), the “Order Police” from 1936 to 1945. Rare and difficult to find flag.
The Deutsch Reicht Flag is the color for the Deutsch Reicht empire. The black, red, and white come from the arms, a
The German Jack Flag is a German Flag. It has the colors of the arms, black, red, and white, with a black plus sign in the middle. The German Flag was placed in the corner.