Name
- Air Ministry, 1918-19642
- Admiralty, 1708-19641
- British Forces in Iraq, 1933-19411
- Foreign Office, 1782-19681
- Government of India, Foreign and Political Department, 1783-19371
- Government of India, Marine Department, Early 20th century1
- HM Treasury, 12th century-1
- Indian Political Service, External Affairs Department, 1937-19471
- Persian Gulf Political Residency, 1822-19711
- Political Agent and Consul, Muscat, 1861-19711
- Political Resident, Persian Gulf, 1822-19711
- Royal Air Force, 1918-1
- Royal Navy, 1660-1
- Senior Naval Officer in the Persian Gulf, 1822-19711
- Sultan of Muscat and Oman, Āl Bū Sa‘īd Dynasty, 1861-19701