1. 'Trans-Persian Railway' Contributor: Chief of the General Staff, India (author) Date: 1913/1913 Language: English Geographic region: Persia Extent: 1 file (3 folios)
2. ‘File 28/16 I Defence measures in the Gulf – Bahrain’ Contributor: Political Resident, Persian Gulf (correspondent) Date: 1937/1939 Language: EnglishArabic Extent: 1 file (154 folios)
3. ‘File 28/35 Defence of Qatar’ Contributor: Petroleum Concessions Limited, Manager, Bahrain (correspondent) Date: 1939/1941 Language: EnglishArabic Geographic region: ZekritQatar Extent: 1 file (73 folios)
4. ‘File 28/44 Miscellaneous correspondence – Town Major’ Contributor: Station Commander, Bahrain (correspondent) Date: 1942/1944 Language: English Extent: 1 file (75 folios)
5. ‘File 28/55 Provision of machine guns for Bahrain police’ Contributor: Adviser to the Government of Bahrain (correspondent)Political Resident, Persian Gulf (correspondent) Date: 1938/1942 Language: English Extent: 1 file (128 folios)
6. ‘File 28/61 War. BAPCO and A.I.O.C. – Attitude of employees regarding enlistment in armed forces at outbreak of war’ Contributor: Bahrain Petroleum Company, Chief Local Representative (correspondent)Political Resident, Persian Gulf (correspondent) Date: 1939/1939 Language: English Extent: 1 file (62 folios)
7. ‘File 28/75 Defence policy for the Gulf’ Contributor: Air Officer Commanding, Iraq (correspondent)Political Resident, Persian Gulf (correspondent) Date: 1938/1939 Language: English Geographic region: Persian Gulf Extent: 1 file (124 folios)
8. 'File 11/34 III Muscat War Subsidy and Defence of Arab Side of Gulf' Contributor: Sultan of Muscat and Oman, Āl Bū Sa'īd Dynasty (correspondent)Persian Gulf Political Residency (correspondent) Date: 1939/1941 Language: EnglishArabic Extent: 1 volume (188 folios)
9. 'File 11/34 Defence: Muscat War Subsidy' Contributor: Sultan of Muscat and Oman, Āl Bū Sa'īd Dynasty (correspondent)Persian Gulf Political Residency (correspondent) Date: 1941/1948 Language: EnglishArabic Extent: 1 file (220 folios)
10. 'File 11/34 I Defence and War Subsidy' Contributor: Persian Gulf Political Residency (correspondent) Date: 1937/1939 Language: English Extent: 1 volume (160 folios)
11. File 11/34 II 'Defence and War Subsidy' Contributor: Persian Gulf Political Residency (correspondent)Sultan of Muscat and Oman, Āl Bū Sa'īd Dynasty (correspondent) Date: 1939/1939 Language: EnglishArabic Extent: 1 volume (162 folios)
12. Letter (Secret No. 27) from Austen Chamberlain to Charles Hardinge, Governor General of India in Council, with enclosures Contributor: Admiralty (correspondent)India Office (correspondent) Date: 1915/1915 Language: English Geographic region: Persia Extent: 1 file (4 folios)
