Wilhelm II. Prerequisites for the award were: 1. a distance traveled of at least 1000 km in an aircraft, 2. a successfully completed technical assistance examination on an aircraft, 3. pass of at least one retake, 4. accomplished exploration missions, and 5. a certification as an observation officer. A similar badge was donated by King Ludwig III. on 3 March 1914 for the Bavarian army. The airgunner badge (Abzeichen Flugzeug-Fliegerschützen) was founded on January 27, 1918 by emperor Wilhelm II. The soldiers had to demonstrate in-depth knowledge in engine construction and operation, in flight training, in map reading, in the tactics of aerial combat, in theory of bombing, and skills in the operation of machine guns on the ground and in aerial combat. The commemorative badge for airship crews (Erinnerungsabzeichen für Besatzungen der Luftschiffe) was donated in 1920 by Reichswehr Minister Otto Gessler. There were two versions for Army and Navy airships. Upon request, it was awarded to officers, deck officers, NCOs and crews of former airship crews, who during the war had at least one year of activity on front aircraft. 1935-1945 The Pilotenabzeichen (Pilot's Badge) of the former Luftwaffe had been instituted by Hermann Göring on 12 August 1935. It came in distinct types; nickel silver (changed to zinc during the war) and a variant made of gold. It depicts a silver eagle perched atop a swastika, wings open in a landing pose, and surrounded by a wreath with laurel on the right side and oak branches on the left side, respectively. It was worn in the center of the left breast pocket of the service tunic, underneath the Iron Cross 1st Class if awarded. The badge was awarded after one completed flight training and the flying licence and citation were received. After 1955 In the Bundeswehr the aviation badge (Tätigkeitsabzeichen Militärluftfahrzeugführer) comes in three grades: bronze (Standard Pilot), silver (Senior Pilot) after 1200 flight hours and gold (Command Pilot) after 1800 flight hours. It depicts the Bundesadler surrounded by an oak leaf wreath between two wings. It is worn above the right breast pocket. A total of two Tätigkeitsabzeichen may be worn, one of which can be foreign in which case the foreign one would be worn below the German one. Hungary 1938-1945 Pilots and navigators of the Royal Hungarian Air Force wore their aviator rating badge sewn on their uniforms right breast above the pocketflap. The