25. 'File 5/1 III Kuwait Oil Company' Contributor: Anglo-Iranian Oil Company Limited (correspondent)Emir of Kuwait (correspondent)Political Resident, Persian Gulf (correspondent) Date: 1924/1931 Language: EnglishArabicPersianFrench Extent: 1 Volume (379 folios)
26. 'File 5/193 I (B 23) Slavery in the Gulf' Date: 1924/1929 Language: EnglishArabicPersian Extent: 1 volume (216 folios)
27. 'File No. B/1 V. O. Miscellaneous Correspondence with the Shaikh and Notables of Qatar.’ Contributor: Emir of Qatar (correspondent) Date: 1926/1944 Language: EnglishArabicPersian Extent: 1 file (150 folios)
28. ‘X. PASSPORTS AND PROTECTION. A. PASSPORTS. (1) Persian passports regulations effecting Muscat subjects.’ Contributor: Government of Iran, Pahlavi dynasty (correspondent; subject) Date: 1928/1929 Language: EnglishArabicPersianFrench Extent: 1 file (54 folios)
29. 'File 16/00 Letters of good offices' Date: 1928/1931 Language: EnglishArabicPersian Extent: 1 file (136 folios)
30. 'File 23/1 Acquisition of property in Bahrain by Shaikh Muhammad ibn `Isa Al Khalifa; Hindu Bathing Pool' Contributor: Bahrain Political Agency (creator) Date: 1928/1929 Language: EnglishArabicPersian Extent: 1 file (14 folios)
31. ‘File 12/5 Wrecks of sailing boats and vessels in the sea and salvages’ Contributor: Sopher and Company (correspondent)Director of Customs and Port Officer (correspondent)Native Agent, Trucial Coast, Sharjah (correspondent) Date: 1929/1945 Language: EnglishArabicPersian Extent: 1 file (282 folios)
32. 'File B/3 Miscellaneous Correspondence with the Shaikh, the Notables and the Political Agent, Kuwait' Contributor: Political Agent, Kuwait (correspondent)Political Resident, Persian Gulf (correspondent)Emir of Kuwait (correspondent) Date: 1930/1949 Language: EnglishArabicPersian Geographic region: Kuwait Extent: 1 file (100 folios)
34. 'File 5/197 I – Absconding of Slaves from Sharja and Henjam' Contributor: Senior Naval Officer in the Persian Gulf (correspondent) Date: 1930/1934 Language: EnglishArabicPersian Extent: 1 volume (202 folios)
35. 'Miscellaneous Papers Regarding Judicial Matters' Date: 1931/1931 Language: ArabicEnglishPersian Extent: 1 file (11 folios)
36. 'File 3/1 Local affairs' Contributor: Emir of Dubai, Āl Maktūm dynasty (correspondent)Emir of Ra's al-Khaymah, Āl Qāsimī dynasty (correspondent)Native Agent, Trucial Coast, Sharjah (correspondent) Date: 1932/1939 Language: EnglishArabicPersian Geographic region: DubaiSharjahAjmanRas al-Khaimah Extent: 1 file (261 folios)