27. 'File 2/6 Southern Arabian Air Route. II-A/8' Date: 1942/1942 Language: English Geographic region: SalalahRas al-HaddMasirah
28. 'File 8/20: MUSCAT STATE AFFAIRS: RISE OF OMANIS' Date: 1917/1920 Language: English Geographic region: Oman
29. 'File 12/4 TELEGRAMS SENT FROM SALALAH BY SULTAN OR HIS REPRESENTATIVE' Date: 1947/1947 Language: English Geographic region: Salalah
34. 'File 8/78 II Sale of Gwadur to His Majesty's Government' Date: 1949/1950 Language: English Geographic region: Gwadur
35. 'File 8/78 MUSCAT STATE AFFAIRS: RENDITION OF GWADUR TO KALAT.' Date: 1913/1948 Language: English Geographic region: Gwadur