1. 'File 3/18 Annex Political Agent's launch, lavatory' Date: 1936/1937 Language: English Extent: 1 volume (26 folios)
2. 'File 10/10 II Bahrain Additional Area' Contributor: Bahrain Political Agency (creator)Political Agent, Bahrain (creator) Date: 1947/1949 Language: EnglishArabic Geographic region: Hawar Islands Extent: 1 file (52 folios)
3. 'File 6/21 Proposed return of Shaikh Khallaf, late Shea [Shī‘a] Qadhi of Bahrain' Contributor: High Commissioner, Iraq (correspondent)King of Bahrain (correspondent)Shaikh Khallaf bin Ahmad Asfour al- (correspondent; subject) Date: 1929/1933 Language: EnglishArabic Extent: 1 file (45 folios)
4. 'File 32/18 Influence of 'Al Ansar' Movement in Bahrain and Entry of Iranian Publications Attacking Shi'ah Faith' Date: 1946/1947 Language: English Extent: 1 file (27 folios)
5. ‘Letters from Persia received Nov. 14:1857’ Contributor: HM Ambassador to Iran (correspondent) Date: 1857/1857 Language: English Geographic region: Herāt Extent: 1 item (4 folios)
6. 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)
7. 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)
8. 'Naval Staff monographs (historical) vol 4 no 15 - Naval operations in Mesopotamia and the Persian Gulf' Date: 1921/1921 Language: English Extent: 73 folios
9. 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)
10. Coll 28/57 ‘Persia. Perso-Turkish relations; Treaty of Friendship & Security’ Contributor: British Legation, Tehran (correspondent)HM Ambassador to the Republic of Turkey (correspondent) Date: 1932/1940 Language: EnglishFrench Geographic region: MarbishuTurkey Extent: 1 file (77 folios)
11. 'File 1/28 Superintendent, Political Agency, Bahrain' Date: 1933/1944 Language: English Extent: 1 file (431 folios)
12. ‘Cyprus.’ Contributor: Government of India, Quarter Master General's Department, Intelligence Branch (author) Date: 1878/1878 Language: English Extent: 1 volume (91 folios)