1. File 3104/1915 Pt 9 ‘Mesopotamia: Trade with- Payments from enemy assets in England to firms in Mesopotamia; payment of dividends of British companies, legacies, &c to residents in Mesopotamia; Messrs. Selim Homsy’s claims against clients in Mosul district; Messrs. Andrew Weir & Co’s claim against Idara Nahrieh’ Contributor: Board of Trade (correspondent)Government of India, Foreign and Political Department (correspondent) Date: 1918/1920 Language: English Extent: 1 item (166 folios)
2. 'CONFIDENTIAL 86/12-ii A.75. P.C.L. MUSCAT' Contributor: India Office (correspondent)Petroleum Concessions Limited (correspondent)Sultan of Muscat and Oman, Āl Bū Sa'īd Dynasty (correspondent)Political Agent and Consul, Muscat (correspondent) Date: 1937/1937 Language: English Geographic region: OmanMuscatDhofar Extent: 1 volume (187 folios)
3. 'File K/6 Wakils and Agents in the Agency Courts' Date: 1927/1950 Language: EnglishArabic Extent: 1 file (120 folios)
4. File 2764/1904 Pt 3 'Baghdad Railway: general negotiations 1910-1912.' Contributor: HM Ambassador to France (correspondent)HM Ambassador to the Ottoman Empire (correspondent) Date: 1910/1912 Language: English Extent: 1 volume (268 folios)
5. File 1323/1917 Pt 3 'Mesopotamia: Postage Stamps for Mosul Vilayet.' Date: 1918/1920 Language: English Extent: 1 item (33 folios)
6. Coll 28/129 ‘OIL; Oil concessions in North Persia; Request by Soviet Government.’ Contributor: Foreign Office (correspondent)HM Ambassador to Iran (correspondent) Date: 1944/1945 Language: EnglishFrench Extent: 1 file (325 folios)
7. Coll 34/11 'Slavery and Slave Trade: Red Sea, Arabia and Persian Gulf: Investigations by Sir George Maxwell' Contributor: League of Nations, Advisory Committee of Experts on Slavery (correspondent; subject)Persian Gulf Political Residency (correspondent) Date: 1936/1939 Language: English Extent: 1 file (338 folios)
8. 'File 1/28 Superintendent, Political Agency, Bahrain' Date: 1933/1944 Language: English Extent: 1 file (431 folios)
9. Coll 5/60(2) ‘Afghanistan: Further purchase of Hind aircraft from UK by Afghan Govt’ Contributor: Air Ministry (correspondent)Foreign Office (correspondent)Indian Political Service, External Affairs Department (correspondent)HM Ambassador to Afghanistan (correspondent) Date: 1938/1944 Language: English Geographic region: Afghanistan Extent: 1 file (537 folios)
10. ‘Cyprus.’ Contributor: Government of India, Quarter Master General's Department, Intelligence Branch (author) Date: 1878/1878 Language: English Extent: 1 volume (91 folios)
11. File 1421/1908 Pt 2 'Persia: oil; Ahwaz oil guard' Contributor: HM Treasury (correspondent)Political Resident, Persian Gulf (correspondent)British Vice-Consul, Ahwaz (correspondent)HM Ambassador to Iran (correspondent)Secretary of State for Foreign Affairs (correspondent)William Knox D'Arcy (correspondent)George Bernard Reynolds (correspondent) Date: 1907/1910 Language: English Extent: 1 item (239 folios)
12. Coll 30/90 'Persian claim to the island of Bahrain' Contributor: Political Resident, Persian Gulf (correspondent)Foreign Office (correspondent)HM Ambassador to Iran (correspondent)Government of Iran, Pahlavi dynasty (correspondent) Date: 1934/1948 Language: EnglishFrench Geographic region: Bahrein Extent: 1 file in 3 parts (519 folios)
13. ‘File 13/3 BOAC [British Overseas Airways Corporation] services’ Contributor: British Overseas Airways Corporation (correspondent) Date: 1932/1950 Language: EnglishArabic Geographic region: Muharraq Aerodrome Extent: 1 file (226 folios)
14. ‘File 29/18i I Food Supplies – TEA & COFFEE’ Contributor: Adviser to the Government of Bahrain (correspondent)Government of Bahrain, Food Controller (correspondent) Date: 1940/1944 Language: EnglishFrenchArabic Extent: 1 file (372 folios)
15. 'File 19/2 IV The Honourable the Political Resident's tours, etc' Contributor: Petroleum Concessions Limited (correspondent)Adviser to the Government of Bahrain (correspondent)King of Bahrain (correspondent)Political Agent, Trucial Coast (correspondent)British Overseas Airways Corporation (correspondent)Political Resident, Persian Gulf (correspondent; subject)Yusuf Bin Ahmed Kanoo (correspondent) Date: 1937/1944 Language: English Extent: 1 file (415 folios)
16. 'File 19/212 III (C 58) Bahrain Transhipment of Cargo' Contributor: James Orton (correspondent)Francis Warden (correspondent)Hugh Weightman (correspondent) Date: 1934/1935 Language: English Geographic region: BahrainBūshehr Extent: 1 volume (209 folios)
17. 'File G/10 V. O. Personal letters of PAs & AP.A.S’ Contributor: Cornelius James Pelly (correspondent)Shaikh Hakim of Bahrain Salmān bin Ḥamad Āl Khalīfah (correspondent) Date: 1943/1950 Language: ArabicEnglish Extent: 1 file (134 folios)
18. Ext 5000/46(1) ‘Persian Situation: Miscellaneous Reports’ Contributor: HM Ambassador to Soviet Russia (correspondent)HM Ambassador to Iran (correspondent)British Consul, Ahwaz (correspondent)British Consul, Khorramshahr (correspondent)Foreign Office (recipient) Date: 1946/1946 Language: EnglishFrench Geographic region: KhuristanAzerbaijanAbadanAhwazTehrānIranPersia Extent: 1 file (596 folios)
19. Coll 30/113 'Position of the Trucial Sheikhdoms in international law: Definition of Bahrain and Shargah in connection with the Import Duties Act 1932.' Date: 1929/1944 Language: English Geographic region: BahrainTrucial CoastKuwait Extent: 1 file (264 folios)
20. 'File 14/4 RED OXIDE AT QURIYAT' [Qurayyāt]' Contributor: Political Resident, Persian Gulf (correspondent) Date: 1924/1924 Language: English Geographic region: Quriyat Extent: 1 file (9 folios)
21. File 2672/1912 ‘Turco-Italian War: Red Sea’ Contributor: Ministry of Foreign Affairs (correspondent)Foreign Office (correspondent)India Office (correspondent)Commissione Delle Prede, Italian Prize Court (author)HM Ambassador to Italy (correspondent)Government of Bombay, Political Department (correspondent) Date: 1912/1913 Language: EnglishItalian Geographic region: AdenHodeidaRed SeaYemen Extent: 1 volume (312 folios)
22. 'File 9/29 Overseas trade enquiries' Contributor: Political Resident, Persian Gulf (correspondent)Bahrain Petroleum Company (correspondent) Date: 1938/1944 Language: English Extent: 1 file (65 folios)
23. Coll 30/28 'Persian Gulf, Bahrein: Electric Installation, Engagement of an Engineer; Affairs of Assistant Engineer and General Question of Recruitment of European Employees by Bahrain Government' Contributor: Adviser to the Government of Bahrain (correspondent) Date: 1931/1948 Language: English Geographic region: Bahrain Extent: 1 file (322 folios)
24. Coll 30/65 'Persian Gulf. Bahrain. Purchase of land at Bahrain by H.M.G. for naval and R.A.F. purposes' Date: 1933/1939 Language: English Geographic region: Bahrain Extent: 1 file (473 folios)