49. 'File 14/6 EXPLOITATION IN MUSCAT TERRITORY BY GEOLOGISTS' Date: 1937/1940 Language: English Geographic region: Oman
50. 'CONFIDENTIAL VOL. B.58. 86/7-X P.C.L. TRUCIAL COAST' Date: 1938/1941 Language: English Geographic region: Abu DhabiAjmanKalba
52. Book 88: Letters Outwards Date: 1835/1835 Language: English Geographic region: AboothabeeMuscatBatinah Coast
53. Vol 108: Native Letters Inward Date: 1838/1839 Language: English Geographic region: PersiaOmanBahrein
54. Vol 116: 'Secret Letter Book Volume 3' Date: 1839/1840 Language: English Geographic region: Persia
55. Vol 166: 1850 Squadron, Persian Gulf Date: 1850/1850 Language: English Geographic region: AboothabeeKateefDebai
56. Vol 179 1852/53 Squadron, Persian Gulf Date: 1852/1852 Language: English Geographic region: ZanzibarBassidoreAboothabee
57. Vol 33 Miscellaneous letters inward and outward Date: 1824/1824 Language: English Geographic region: AboothabeeBahrainSharga
58. Vol 65: Letters Inward Date: 1829/1830 Language: English Geographic region: MuscatBahreinShargaJulfa
59. Vol 80: Translation Book 1833 (Native Letters Inward) Date: 1833/1833 Language: English Geographic region: Persia