25. 'CONFIDENTIAL, B. 26 File No. 14/215 Confiscation by Persian Customs at Farur of cargo, etc, from 2 Arab dhows' Contributor: Senior Naval Officer in the Persian Gulf (correspondent)Emir of Ajman, Āl Nu'aymī dynasty (correspondent)Minister for Foreign Affairs (recipient) Date: 1930/1930 Language: EnglishArabicFrench Extent: 1 volume (89 folios)
26. 'Books, Periodicals, and Publications' Contributor: Adviser to the Government of Bahrain (correspondent) Date: 1934/1938 Language: EnglishArabicFrench Extent: 1 file (316 folios)
27. 'Corr. re: Visits of Foreign Warships to Bahrain' Date: 1935/1939 Language: EnglishArabicFrench Extent: 1 volume (161 folios)
28. 'Muscat French Flag Question' Date: 1905/1905 Language: EnglishArabicFrench Extent: 1 volume (332 folios)
30. 'Articles in Press on Gulf Affairs' Contributor: Adviser to the Government of Bahrain (correspondent) Date: 1938/1939 Language: EnglishArabicFrench Extent: 1 file (362 folios)
31. ‘File 5/6 I Brussels Conference and general rules and procedure on slave traffic’ Contributor: Bahrain Political Agency (correspondent)Native Agent, Trucial Coast, Sharjah (correspondent)James Orton (correspondent)Francis Warden (correspondent) Date: 1892/1925 Language: EnglishFrenchArabicPersian Geographic region: BūshehrAbū-ShahrHormuz Isle Extent: 1 volume (137 folios)
32. 'File 9/11 Grant of Passports and Permits by the Bahrain Government and Treaty with Persia relative to withdrawal of claim to' Contributor: Bahrain Political Agency (creator)Political Agent, Bahrain (creator) Date: 1929/1930 Language: EnglishFrenchArabic Geographic region: Persia Extent: 1 file (73 folios)
33. 'File 12/1 [1 A/1 I] Persian Claims to Bahrain' Date: 1933/1946 Language: EnglishFrenchArabic Extent: 1 file (249 folios)
34. 'File 13/2 VII Air facilities in Arab shaikhdoms' Contributor: British Overseas Airways Corporation (correspondent)Government of Bahrain, Āl Khalīfa dynasty (correspondent)Political Resident, Persian Gulf (correspondent) Date: 1945/1946 Language: EnglishArabicFrench Geographic region: QatarTrucial Coast Extent: 1 file (212 folios)
35. ‘File 13/4 I Facilities for foreign air companies to use Arabian Air Route’ Contributor: Foreign Office (correspondent) Date: 1932/1937 Language: EnglishFrenchArabic Geographic region: Muharraq Aerodrome Extent: 1 volume (222 folios)
36. 'File 14/115 VIII B 15 Abu Musa. Red oxide concession.' Contributor: Native Agent, Lingah (correspondent)German Vice-Consul, Bushire (correspondent) Date: 1911/1912 Language: EnglishArabicFrench Geographic region: Abu Musa IslandSirri Extent: 1 volume (188 folios)