Germany, RLB. A 1935 Reich Air Protection League (RLB) Düsseldorf Meeting Badge by Ferdinand Hoffstätter

(Reichsluftschutzbund Dortmund Treffen Abzeichen). Constructed of aluminum, vertical pinback, the reverse maker marked “F. Hoffstätter, Bonn”, measuring 60 mm (w) x 38 mm (h), in extremely fine condition.