25. ‘Book No 157 Old Index From May 1847 To November 1849’ Vol 157 Secret letters outward Date: 1847/1849 Language: English Geographic region: Trucial CoastBahreinMuscat
26. ‘Book 128’ Letters outward Date: 1841/1841 Language: English Geographic region: Trucial CoastBrymee
27. 'Book 130' Letters inward Date: 1840/1841 Language: English Geographic region: Trucial CoastEl Biddah
28. ‘Book 131’ Secret letters inward Date: 1840/1841 Language: English Geographic region: Trucial CoastZanzibarKarrack (island)Nos Beh (island)
29. 'Book 140 1843' letters inward Date: 1843/1843 Language: English Geographic region: Trucial Coast
30. 'Book 141 1844-1849' secret letters inward Date: 1843/1848 Language: English Geographic region: Eastern Africa
32. ‘Book 153 1847’ Vol 153 Letters inward Date: 1847/1847 Language: English Geographic region: Eastern Africa
33. ‘Book 155 1848’ Vol 155 Letters inward Creator: Author: Secretary of State for Foreign AffairsAuthor: Lords Commissioners of the Treasury Date: 1848/1848 Language: English Geographic region: Eastern Africa
34. ‘Book 161 1847’ Vol 161 Letters inward Date: 1847/1847 Language: English Geographic region: AdenEastern Africa
35. 'British interests on the coast of Arabia, Koweit, Bahrein and El Katr' Creator: Author: India Office, Secretary to the Political and Secret DepartmentAuthor: HM Ambassador to the Ottoman Empire Date: 1905/1905 Language: English Geographic region: BahrainKoweitBahrein
36. 'Egyptian Claims to Sovereignty over the Somali Coast.' Date: 1876/1879 Language: English Geographic region: BerberaAden