13. 'CONFIDENTIAL 86/30 - II VOL. C.91. WIRELESS COMMUNICATION BETWEEN BAHRAIN AND SAUDI ARABIA' Date: 1942/1946 Language: English Geographic region: ʻAwālīDhahran
14. 'His Excellency SHEIKH HAMAD BIN SHEIKH ISSA AL KHALIFAH SHEIKH of BAHREIN AND THE BAHREIN PETROLEUM COMPANY LIMITED. LEASE [COPY]' Date: 1934/1934 Language: English Geographic region: Bahrein
17. 'File 9/1 A. Presentation of arms by P.C.L. to Rulers of Trucial Coast' Date: 1938/1941 Language: English
18. 'File 9/5 III Import of Arms and Ammunitions for Bahrain State Police' Date: 1945/1949 Language: English
19. 'File 9/6 I Arms & Ammunition. Rules and Regulations re- import of arms and ammunition into Foreign Countries' Date: 1939/1939 Language: English Geographic region: Zanzibar
20. 'File 9/7 Arms & Ammunition. Issue of Permits to Country-crafts to Carry Arms' Date: 1943/1944 Language: English
21. ‘File 12/17 Seamen’s Club and Hostel, Establishment of: Correspondence re:’ Date: 1947/1947 Language: English
22. 'File 19/163 II (C 77) Nejd-Bahrain Relations' Date: 1932/1939 Language: English Geographic region: Kingdom of HejazHidjaz
23. ‘File 28/1 A Bahrain Petroleum Company Limited – standing orders for their guards’ Date: 1939/1939 Language: English Geographic region: SitrahBahrain
24. ‘File 28/1 D Local Volunteer Defence Force. British N.C.O. Instructors for Defence Force’ Date: 1940/1942 Language: English Geographic region: Bahrain