Name
- Persian Gulf Political Residency, 1822-197139
- Foreign Office, 1782-196822
- Indian Political Service, External Affairs Department, 1937-194720
- Government of India, Foreign and Political Department, 1783-193716
- Admiralty, 1708-19649
- Colonial Office, 1854-19667
- Political Resident, Persian Gulf, 1822-19717
- Air Ministry, 1918-19646
- Petroleum Division, 1929-19704
- British Broadcasting Corporation, 1923-3
- Buckingham Palace, London, 1837-3
- Dominions Office, 1925-19473
- Financial Advisor to the Sultan of Muscat, 1924?-1933?3
- Government of India, Foreign Secretary, 1843-19373
- HM Treasury, 12th century-3
- Sultan of Muscat and Oman, Āl Bū Sa‘īd Dynasty, 1861-19703
- Board of Trade, 1786-19702
- Department of Overseas Trade, 1918-19532
- Government of France, Third Republic, 1871-19402
- Government of Oman, 1741-2