1. 'Oil Interests in the Persian Gulf. Communicated by the Board of Trade and revised to 28 June 1928.' Date: 1928/1928 Language: English Geographic region: Persian GulfIraq
2. Coll 28/81 ‘Persia. Concessions in; Activities of Mr C. C. Hart. Amiranian Oil Company’s Concession.’ Date: 1934/1941 Language: English
3. File 1010/1917 ‘PERSIA: CONCESSIONS – Khostaria concession; Leach concession; Toumaniantz concession’ Date: 1917/1922 Language: English Geographic region: Persia
4. File 5924/1920 Pt 2 ‘Persia:- Financial Situation. Persian debt to H.M. Govt.’ Date: 1923/1931 Language: English