37. Letter and memorandum by George Henry Maxwell Batten, Commissioner of Inland Customs,concerning the abolition of the customs line between Rajputana [Rājasthān] and the Central Indian States. Date: 1873/1874 Language: English
38. Aden Affairs: Red Sea and Abyssinia Date: 1850/1850 Language: English Geographic region: AbyssiniaRed Sea
39. Coll 30/22 'Persian Gulf, Bahrein. Bahrein State Budget; Economy Proposals; Grant of Tariff Autonomy; Increase in Customs Duties; Developments in Bahrein' Date: 1932/1945 Language: English Geographic region: Bahrain
40. Coll 30/22 'Persian Gulf, Bahrein. Bahrein State Budget; Question of Successor to British Adviser to Shaikh of Bahrain' Date: 1946/1946 Language: English Geographic region: Bahrain
41. File 1311/1905 ‘Persian Gulf: - Post Offices. (Parcel Post Convention)’ Date: 1902/1911 Language: English Geographic region: Persia
42. File 1173/1914 ‘Muscat:- financial affairs. Loans to the Sultan.’ Date: 1910/1927 Language: English Geographic region: Muscat
44. File 57/1928 Pt 14 'Nejd-Koweit: Proposals for a comprehensive settlement between Ibn Saud & the Sheikh of Koweit.' Date: 1929/1931 Language: English