ah no on the book Pzknacker, go to Roger James Bender publishing and pick up a copy off the net. 2000 year printing

the flag represents the Deutsche Arbeitsfront or DAF ~ German work/labor

this is a district flag shown by the city and numeration in the corner. eAch town/city had one as it supplied the Reich with man and woman power under that organization. the cogwheel design was used on flags of all sizes as well as insignia on uniforms