Rolls Royce : 'Merlin' Engine, a brochure with techinical details and performance figures; Rolls Royce 'Some Notes on Modern High-Performance Engines; and a collection of other brochures for Rolls Royce: 'Conway', 'Nene', 'Gnome', 'Gem', ; Rolls Royce Bulletins January 1956 and July 1957; Shell 'Book of the Jet' and others