Germany, Weimar. A Stahlhelm Ostpreußen (East Prussia) Sleeve Patch

(Der Stahlhelm Ostpreußen Ärmelabzeichen). A Weimar-era Stahlhelm Ostpreußen (East Prussia) district sleeve patch depicting regional coat of arms, constructed of black machine embroidery on a white cotton blended background, measuring 71 mm (h) x 61.5 mm (w), in very fine condition