6. 'File 4/14 I Bahrain Development' Creator: Author: Bahrain Petroleum Company Date: 1937/1945 Language: English
7. Coll 28/3 ‘Persia. Financial situation’ Date: 1935/1938 Language: English Geographic region: Persia
8. Coll 28/3(2) ‘Persia. Financial situation.’ Creator: Author: Administrator General of the Finances of Iran Date: 1938/1946 Language: English Geographic region: Persia
9. Coll 28/3(3) ‘Persia. Financial Situation’ Date: 1946/1947 Language: English Geographic region: IranTehran