A group of four WWI model Air Force badges. The WWI Austrian Imperial pilot badge symbolizes the skill and bravery of Austrian aviators. The WWI Ottoman Turk pilot badge commemorates the pilots of the Ottoman Empire. The WWI German Imperial Commemorative Army pilot badge serves as a testament to the courage and dedication of German aviators. Finally, the Bavarian Luftwaffe pilot badge honors the pilots of Bavaria, whose service in the air contributed to the defense and operations of the German Air Force during this pivotal period in history. First World War Badges And Military Insignia Collectibles.