Germany, Weimar Republic. An Upper Silesia Self-Defence Force Sleeve Insignia

(Abzeichen des Selbstschutzes Oberschlesien). Instituted May 1921 by Generalleutnant Karl Hoefer. (1921 issue). Constructed of gilded and silvered bronze, the obverse consisting of a shield with a pebbled border, bearing a central raised hydra pierced by a sword, perforated with four holes for sew-on attachment, unmarked, measuring 44 mm (w) x 54 mm (h), in extremely fine condition.