Collection 2/1H Civil Aviation - London to Karachi air mail service: agreement between Sir Joseph Bhore and Sir Christopher Bullock concerning proposed extension to Australia
Collection 2/1K Civil Aviation - Proposed England to Australia air mail service: undertaking of Imperial Airways to dispose of shares in Indian Trans - Continental Airways Ltd
Collection 2/1P Civil Aviation - Flight to India of Sir Samuel Hoare, Secretary of State for Air: attitude of Persian Government towards proposed route