Avro: A publicity leaflet for the 'Vulcan'; three for the 'Avro' 748; 'Rigging of Aeroplanes' circa 1920; and 'How to Understand Aeroplanes' 1917, by S L Walkden, original covers, Percival Marshall & Co; 'de Havilland', a 'DH Moth Minor' publicity broadsheet, a Gipsy Queen Series 30 Mk 2 Aero engine specification booklet, and a Gipsy Major Type 140 engine cold starting test report