Army Flak badge – Unknown maker ‘Vienna design’

Army Flak badge – Unknown maker ‘Vienna design’. Solid zinc Heer Flak with a unique ‘Vienna design’. Remains in very lightly to un worn condition, with a dark grey look to it. The maker of these flaks is still unknown, but might be linked to the Dish back PAB maker or Frank & Reif based on their setup. Very rare Flak of which less than a hand full have been found so far.
Exceptional condition for such a rare Heer Flak. Especially the eagles head is nicely cut out on this example.