49. 'File 19/109 III (C 22) Bahrain - Relations with Foreign Powers, Etc' Date: 1922/1925 Language: English Geographic region: BahrainBūshehr
50. 'File 19/109 IV (C 28) Shaikh's Relations with other Foreign Powers' Date: 1925/1929 Language: English Geographic region: BahrainBūshehr
51. 'File 19/109 V (C 32) Bahrain Relations with other Foreign Powers' Date: 1929/1931 Language: English Geographic region: KhorramshahrBahrainBūshehr
52. 'File 19/109 VI (C 45) Bahrain Relations with Foreign Powers' Date: 1931/1933 Language: English Geographic region: KhorramshahrBahrainBūshehr
53. 'File 19/109 VII (C 59) Shaikh's Relations with other Foreign Powers' Date: 1933/1935 Language: English Geographic region: Kingdom of HejazGusbaBahrainBūshehr
54. 'File 19/109 VIII (C 68) Bahrain Relations with other Foreign Powers' Date: 1935/1937 Language: English Geographic region: Kingdom of HejazBahrainBūshehr
55. 'File 19/139 I (C 60) Steamer for Bahrain and neighbouring ports' Date: 1914/1930 Language: English Geographic region: BahrainBūshehr
56. 'File 19/163 I (C 33) Bin Saud's relations with Shaikh of Bahrain. Nejdi Agent's activities in Bahrain' Date: 1923/1931 Language: English Geographic region: BahrainBūshehr
57. 'File 19/165 II (C 20) Bahrain Reforms' Date: 1923/1923 Language: English Geographic region: DammāmBahrainBūshehr
58. 'File 19/165 III (C 24) Bahrain Reforms' Date: 1924/1925 Language: English Geographic region: BahrainBūshehr
59. 'File 19/165 IV (C 57) Bahrain Reforms' Date: 1927/1930 Language: English Geographic region: BahrainBūshehr
60. 'File 19/166, 168 (C 25) (1) Nejdis and Persians (2) Mehdi Al Jishi' Date: 1923/1923 Language: English Geographic region: BahrainBūshehr