49. ‘File 28/1 A Bahrain Petroleum Company Limited – standing orders for their guards’ Date: 1939/1939 Language: English Geographic region: SitrahBahrain
50. ‘File 28/1 B 1. Gift of £30,000 of Shaikh of Bahrain to the British Government; 2. Purchase of fighter aircraft; 3. Persian Gulf Fighter Fund’ Date: 1939/1941 Language: English
52. ‘File 28/1 D Local Volunteer Defence Force. British N.C.O. Instructors for Defence Force’ Date: 1940/1942 Language: English Geographic region: Bahrain
53. ‘File 28/1 E Defence Officer, Persian Gulf. Station Commander Bahrain’ Date: 1939/1944 Language: English Geographic region: Bahrain
54. ‘File 28/1 G Bahrain Special Police’ Date: 1939/1945 Language: English Geographic region: Bahrain
55. ‘File 28/1 H Proposal for provision of Indian Infantry Company for Bahrain defence’ Date: 1940/1940 Language: English
56. ‘File 28/1 I Defence against parachutists, obstruction of aerodromes and landing grounds, etc’ Date: 1940/1942 Language: English Geographic region: BaluchistanNorth-Western Provinces
58. ‘File 28/1 K I Defence of oil field and refinery’ Date: 1939/1942 Language: English Geographic region: ʻAwālīBahrain
59. ‘File 28/1 K III Defence of oil field & refinery’ Date: 1942/1948 Language: English Geographic region: ʻAwālīBahrain
60. ‘File 28/1 L I BAPCO refinery guards’ Date: 1939/1942 Language: English Geographic region: Bahrain