25. Sketch map showing Oman and Trucial States Date: 1926/1926 Language: English Geographic region: OmanTrucial States
27. ‘PLAN of BASSADORE ROADS by H.H. Hewett Midshipman most respectfully dedicated to Commodore J. Pepper, Indian Navy, 1836’ Date: 1855/1855 Language: English Geographic region: قشممسقطالبحرينالكويتالإمارات المتصالحةقطرسِتْرة
28. File 912/1926 'PERSIAN GULF NEWS SUMMARY 1926-1930' Date: 1926/1931 Language: English Geographic region: Persian GulfTrucial States