(Reichsluftschutzbund Mützenabzeichen). Constructed of gilded bronze, the obverse consisting of a Reichsluftschutzbund- (Reich Air Protection League/RLB) style German national eagle clutching an RLB insignia, the reverse with both attachment prongs intact, unmarked, measuring 68 mm (w) x 35 mm (h), in extremely fine condition. Very scarce insignia.