1. Coll 5/23 ‘Violation of Tibetan territory by aircraft’ Date: 1943/1944 Language: English Geographic region: Tibet
2. Coll 7/6 'Tibet: supply of arms from British sources' Date: 1931/1947 Language: English Geographic region: Tibet
3. Diary of Sir Arthur Hirtzel, 1906 Date: 1906/1906 Language: English Geographic region: BengalTibetAfghanistanAden Protectorate
