14. 'File XXV/2 Arabian Affairs (including Iraq). Qatar and al Hassa (Bin Saud)' Date: 1913/1914 Language: English Geographic region: Al-HasaQatar
15. 'File 5/190 V Manumission of slaves at Muscat: individual cases' Date: 1935/1939 Language: English Geographic region: MuscatAl-Hasa
16. 'File 19/109 II (C 17) Bahrain: Relations of Chief with other Foreign Powers' Date: 1913/1922 Language: English Geographic region: ZubarahAl-Hasa
17. ‘26 File 626 Qatar and Bahrain affairs: action of Shaikh Jasim ibn Muhammad Al Thani against al-`Udaid’ Date: 1881/1886 Language: English Geographic region: Al-HasaQatarAbu DhabiEl Katiff
18. Part of the Arabian side of the Persian Gulf; from Core Abdullah to Ras Reccan, Surveyed by Lieutenants J.M. Guy, G.B. Brucks, & W.E. Rogers, H.E.I.Cs. Marine, 1825. ‘Sheet, 2 and 4. Engraved by R. Bateman’ Date: 1829/1829 Language: English Geographic region: Al-HasaBahrainQatarShatt al ʻArab
19. Sketch map of Bahrain and surrounding ports Date: 1919/1919 Language: English Geographic region: ZubarahAl-Hasa
20. Sketch map of Bahrain and surrounding ports Date: 1920/1920 Language: English Geographic region: ZubarahAl-Hasa
21. File 10/5 I Saudi Arabia: Hasa Oil Concession; visit of Major Holmes to Saudi Arabia; Kuwait blockade. Date: 1932/1935 Language: English Geographic region: Al-HasaKuwait
22. File 10/5 II Hasa oil: CASOC's activities in Hasa; development of Ras Tannura; Political Agent's visit to Hasa Date: 1935/1941 Language: English Geographic region: Al-Hasa
23. File 1508/1905 Pt 3 'Bahrain: postal arrangements; mails; post office' Date: 1905/1912 Language: English Geographic region: BasraAl-Hasa