Name
- Air Ministry, 1918-19642
- Indian Political Service, External Affairs Department, 1937-19472
- Political Resident, Persian Gulf, 1822-19712
- Admiralty, 1708-19641
- Bahrain Petroleum Company, 1929-1
- Foreign Office, 1782-19681
- Government of India, Department of Defence, 1938-19471
- HM Treasury, 12th century-1
- Political Agent and Consul, Muscat, 1861-19711
- Political Agent, Bahrain, 1905-19711
- Sultan of Muscat and Oman, Āl Bū Sa‘īd Dynasty, 1861-19701