Collection 173/21 Engagement of mechanics and provision of passages for them and officers: including Mr S.C. Parr and Sergeants Tomlinson, Palmer and Webb.
Collection 173/50 Expenditure in connection with mission of Air Marshal Sir J. Salmond; General Sykes' memorandum on air power requirements of the Empire.
Collection 173/77 Visit to India of representative of Messrs Heenan & Froude in connection with erection of Heenan Highfield test plant in Royal Air Force Depôt, Karachi.