A collection of De Havilland manuals including Gipsy Queen Series 70 operation maintenance and overhaul manual; and volume 2; Gipsy Queen II manual; 200Hp Gipsy Six engine; type specification book of the D.H. 106 Mk 4C Comet, February 1961; The Tiger Moth II aeroplane Gipsy Major Engine; and other items of similar interest