The Grahame-White Co. Ltd was based at Hendon, Middlesex, and was founded by Claude Grahame-White, a pioneer aviator who had established a flying school at Pau in France in 1910. Three years later he set up a factory to build biplanes at Hendon, where he also managed a 500-acre aerodrome that became the leading airfield in Britain; the site later became home to the RAF Museum. After the war, Grahame-White…