Brass plated. Stylish insignia has a pin closure. USA made. Can be pinned on shirts, pants, shoes, coats, sweaters, bags, hats, helmets, etc. Designed by Captain Henry C. Mustin, the Naval Aviator Insignia is a warfare qualification of the United States military that is awarded to those aviators of the United States Navy, Marine Corps, and Coast Guard who have qualified as Naval Aviators upon successful completion of flight school. Naval aviator insignia.