Name
- Foreign Office, 1782-19685
- Political Resident, Persian Gulf, 1822-19713
- Air Ministry, 1918-19642
- British Legation, Tehran, c 1836-19442
- Government of Iran, Pahlavi dynasty, 1925-19792
- Government of Persia, Qājār dynasty, 1794-19252
- HM Ambassador to Iran, 1807-19802
- Imperial Airways, 1924-19392
- Political Agent and Consul, Muscat, 1861-19712
- Political Agent, Bahrain, 1905-19712
- Sultan of Muscat and Oman, Āl Bū Sa‘īd Dynasty, 1861-19702
- Agent to the Governor-General, Resident and Chief Commissioner, Baluchistan, 1876-19471
- Banū Ka‘b, Tribe, c 1740-c 18401
- British Overseas Airways Corporation, 1939-19741
- Cable and Wireless Ltd, 1929-19811
- Committee of Imperial Defence, Standing Official Sub-Committee for Questions Concerning the Middle East, 1930-19391
- Director of Customs and Port Officer, Bahrain, c 1929-c 19441
- Emir of Mohammerah, c 1800-19361
- Government of India, Foreign and Political Department, 1783-19371
- Government of the Russian Empire, 1721-19171