Name
- Foreign Office, 1782-196810
- Government of Iran, Pahlavi dynasty, 1925-19798
- British Legation, Tehran, c 1836-19447
- Government of Persia, Qājār dynasty, 1794-19254
- HM Ambassador to Iran, 1807-19804
- Afghan Air Force, 1924-3
- Government of Bombay, Political Department, 1754-1934?3
- Government of India, 1834-19473
- Government of India, Foreign and Political Department, 1783-19373
- HM Ambassador to Afghanistan, 1922-3
- Political Resident, Persian Gulf, 1822-19713
- Shāh of Persia, Qājār dynasty, 1794-19253
- Sultan of Muscat and Oman, Āl Bū Sa‘īd Dynasty, 1861-19703
- Air Ministry, 1918-19642
- Anglo-Iranian Oil Company Limited, 1909-19542
- British Consul, Seistan and Kain, 1903?-1935?2
- D'Arcy, William Knox, petro-chemical industrialist, 1849-19172
- Government of the Russian Empire, 1721-19172
- Hawker Aircraft Limited, 1920-19632
- Imperial Iranian Army, 1925-19792