Aviation instruments: Impellor, unsigned, connected to a Stop-Watch, unsigned, which is connected to a Distance Meter, by Jules Richard, Paris, France, all three instruments are attached to a two-piece oak frame, from the Replica, of the 1903 ‘Wright Flyer’ aircraft, by The de Havilland Aeronautical Technical School, Hatfield, Hertfordshire, England, 1948. The actual 1903 ‘Wright Flyer’: - designed and built by the Wright Brothers: Orville and Wilbur, achieved the world’s first successful heavier-than-air powered flight, on 17th December 1903 at Kitty Hawk, North Carolina, United States.