25. Native Letters Outward Date: 1856/1859 Language: EnglishArabicPersian Extent: 1 volume (140 folios)
26. Letter from Major Charles Grant, 1 Assistant Resident to Shaikh Eysan bin Alli [‘Īsá bin ‘Alī Āl Khalīfah], Chief of Bahrain Date: 1874/1874 Language: EnglishArabic Extent: 1 folio
27. 'Book No 219. From November 1856 and January 1857 To July 1861' Contributor: Native Agent, Muscat (correspondent)Sultan of Muscat and Oman, Āl Bū Sa'īd Dynasty (correspondent)Sultan of Zanzibar (correspondent)Political Agent and Consul, Muscat (correspondent)Native Agent, Trucial Coast, Sharjah (correspondent)Turkī bin Sa'īd Āl Bū Sa'īd (correspondent) Date: 1857/1862 Language: EnglishArabicHebrew Geographic region: MuscatZanzibarOman Extent: 1 volume (327 folios)
28. Copy of Arabic letter form the Deputy Secretary to the Government of Bombay to Sayyid Sa‘īd bin Sulṭān bin Imām Aḥmad Āl Bū Sa‘īd, Imam of Muscat, dated 15 Ṣafar 1238 [30 October 1822] Date: 1822/1822 Language: Arabic Extent: 1 folio
29. File 58 Bahrain affairs Contributor: Shaikh Hakim of Bahrain Muḥammad bin Khalīfah Āl Khalīfah (witness)James Felix Jones (witness) Date: 1862/1868 Language: EnglishArabic Geographic region: Bahrain Extent: 1 volume (183 folios)
30. 'Book 130' Letters inward Contributor: Political Agent and Consul, Zanzibar (correspondent)Government of Bombay, Secretary to the Political Department (correspondent)Shaikh Salmin bin Nasir (recipient) Date: 1840/1841 Language: EnglishArabic Geographic region: Trucial CoastEl BiddahBahreinMuskatKarrack (island)Eastern Africa Extent: 1 file (40 folios)
31. Letter no.402 of 1852 from Captain Arnold Kemball, Resident in the Persian Gulf, to Arthur Malet, Chief Secretary of the Government Bombay Date: 1852/1852 Language: EnglishArabic Extent: 2 folios
32. 'Book No 271' [Resident's Tour: Reports for 1858 and 1859] Contributor: Sultan of Muscat and Oman, Āl Bū Sa'īd Dynasty (correspondent)Native Agent, Trucial Coast, Sharjah (correspondent)Shaikh of Demaum (correspondent) Date: 1858/1863 Language: EnglishArabic Geographic region: Socotra Extent: 1 volume (115 folios)
34. 'No 413 Vol 19. Revised Commercial Treaty with Muscat' Contributor: Foreign Office (correspondent)Political Agent and Consul, Muscat (correspondent)Government of India, Foreign and Political Department (correspondent) Date: 1887/1905 Language: EnglishArabic Geographic region: ZanzibarMuscat Extent: 1 volume (180 folios)
35. Persian Expeditionary Force Contributor: HM Ambassador to the Ottoman Empire (correspondent)Foreign Office (correspondent)HM Ambassador to Iran (correspondent)Commander of the Persian Expeditionary Force (correspondent)Political Agent, Turkish Arabia (correspondent)Political Agent, Persian Field Force (correspondent)East India Company, Court of Directors, Secret Committee (correspondent) Date: 1856/1857 Language: EnglishArabicFrench Geographic region: Karrack (island)Tungistoon Extent: 1 volume (226 folios)
36. Letter No. 154 from William Newnham, Chief Secretary to the Government, Political Department, Bombay to Ephraim Gerrish Stannus, Resident in the Persian Gulf Date: 1826/1826 Language: EnglishArabic Extent: 3 folios