21. IOR/L/PS/12/4183 Reference (shelfmark): IOR/L/PS/12/4183 Title: Coll 36/18 Sikkim-Tibet boundary dispute Collection Area: India Office Records and Private Papers Languages: English Date Range: 26 Nov 1934-15 May 1936 Extent: 1 file
22. IOR/L/PS/12/4184 Reference (shelfmark): IOR/L/PS/12/4184 Title: Coll 36/19 Reports on tours in Tibet by the Political Officer in Sikkim Collection Area: India Office Records and Private Papers Languages: English Date Range: 17 Sep 1934-8 Oct 1934 Extent: 1 file
23. IOR/L/PS/12/4185A Reference (shelfmark): IOR/L/PS/12/4185A Title: Coll 36/20 'Who's who in Tibet': chiefs and leading families in Sikkim, Bhutan and Tibet; notes on Tibetan ranks and titles Collection Area: India Office Records and Private Papers Languages: English Date Range: 13 Mar 1934-7 Oct 1947 Extent: 1 file
24. IOR/L/PS/12/4185B Reference (shelfmark): IOR/L/PS/12/4185B Title: Coll 36/20 Who's who in Tibet Collection Area: India Office Records and Private Papers Languages: English Date Range: 1 Jun 1948-6 Feb 1950 Extent: 1 file
25. IOR/L/PS/12/4186A Reference (shelfmark): IOR/L/PS/12/4186A Title: Coll 36/21 Customs tariff on Indo-Tibetan banker Collection Area: India Office Records and Private Papers Languages: English Date Range: 24 Aug 1925-5 May 1931 Extent: 1 file
26. IOR/L/PS/12/4186B Reference (shelfmark): IOR/L/PS/12/4186B Title: Coll 36/22 Chinese escort for the Tashi Lama on his return to Tibet Collection Area: India Office Records and Private Papers Languages: English Date Range: 16 Oct 1935-3 Nov 1937 Extent: 1 file
27. IOR/L/PS/12/4187 Reference (shelfmark): IOR/L/PS/12/4187 Title: Coll 36/22(2) Tashi Lama: Chinese escort on his return to Tibet; death Collection Area: India Office Records and Private Papers Languages: English Date Range: 18 Nov 1937-9 May 1940 Extent: 1 file
28. IOR/L/PS/12/4188 Reference (shelfmark): IOR/L/PS/12/4188 Title: Coll 36/23(1) Anglo-Tibetan relations: publication of the 1914 Simla Convention and connected agreements; Indo-Tibetan frontiers Collection Area: India Office Records and Private Papers Languages: English Date Range: 20 Apr 1936-28 Jan 1946 Extent: 1 file
29. IOR/L/PS/12/4189 Reference (shelfmark): IOR/L/PS/12/4189 Title: Coll 36/23(2) Indo-Tibetan frontier: survey of India map "Highlands of Tibet and surrounding regions Collection Area: India Office Records and Private Papers Languages: English Date Range: 16 Jul 1936-16 Nov 1944 Extent: 1 file
30. IOR/L/PS/12/4190A Reference (shelfmark): IOR/L/PS/12/4190A Title: Coll 36/23(3) Indo-Tibetan frontier: maps of Tibet and Sino-Tibetan frontier; China Year Book Collection Area: India Office Records and Private Papers Languages: English Date Range: 15 Nov 1944-11 Jul 1947 Extent: 1 file