49. File 4045/1913 'Pt 3 Railways: Trans-Persian Railway; Russian concession; Bandar Abbas-Kerman Railway; Kerman mining concession' Date: 1916/1932 Language: English Geographic region: Persia
50. File 4045/1913 Pt 1-2 'Trans-Persian Railway' Date: 1913/1916 Language: English Geographic region: Persia
51. File 1250/1917 ‘Turkey:– The Ottoman Public Debt. Salif Salt Quarries.’ Date: 1917/1929 Language: English Geographic region: Salif
52. File 4949/1912 Pt 3 ‘Abu Musa Wönckhaus Lingah’ Date: 1907/1912 Language: German Geographic region: Abū Mūsá
53. File 2830/1914 Pt 1 'Persian Gulf: Sponge Fisheries. Sponge Exploration Syndicate.' Date: 1905/1916 Language: English Geographic region: Persian Gulf
54. File 2794/1921 Pt 5-5A 'OIL QATAR AND MUSCAT' Date: 1923/1933 Language: English Geographic region: MuscatQatar
55. File 2794/1921 Pt 4 'Persian Gulf: oil: Bahrein.' Date: 1925/1930 Language: English Geographic region: Bahrain
56. File 2794/1921 Pt 6 'Persian Gulf: Oil - Bahrain (1933.)' Date: 1933/1933 Language: English Geographic region: Bahrain
57. File 2794/1921 Pt 6 'Persian Gulf: Oil: Bahrain' Date: 1933/1934 Language: English Geographic region: Bahrain
58. File 2794/1921 Pt 6 'Persian Gulf: Oil: Bahrain.' Date: 1931/1933 Language: English Geographic region: Bahrain
59. File 2794/1921 'PARTS 7, 8 & 9 BAHRAIN OIL CONCESSION, WIRELESS, TELEPHONES, AND CUSTOMS DUTIES &c.' Date: 1933/1935 Language: English Geographic region: Bahrain
60. File 2794/1921 Pt 6 'Persian Gulf: Oil: Bahrain' Date: 1934/1936 Language: English Geographic region: Bahrain