Germany, Weimar Republic. A Member’s Badge of the German Aero-Modelers Association
(Mitgliedsabzeichen des Deutschen Aero- und Modellflieger Vereins); winged propeller with separately attached center, in enameled bronze, period soldered on hollow-stamped Prussian pilots badge (with center hand cut out); possibly an very early example of this badge, as the "standard" issue of this badge has a different style of wreath and crown, much smaller. I n worn condition, with nice old patina.