File of papers on aircraft engineering, c.1945-1969
Leaflet on the utilisation of materials at temperatures above 3000 degrees centigrade, published by the Rocket Propulsion Establishment
Newsletter of the Air League of the British Empire, Dec 1945
Graph of Barcol Impressor approximate hardness conversion curves
Turbine-engined fleets of the World's airlines, 1969. Supplement to Esso Air World Vol 21:6, May-June 1969.