14. 'File 5/12 Concession for under-sea oil of Kuwait Neutral Zone' Date: 1948/1949 Language: English
15. 'File 5/13 Shaikh's endeavours to interest certain oil companies in Farsi group of islands' Date: 1948/1948 Language: English Geographic region: Persian Gulf
23. 'File 5/2 II Kuwait Neutral Zone' Date: 1934/1936 Language: English Geographic region: Kuwait-Saudi Arabia Neutral Zone
24. 'File 5/2 III Kuwait Neutral Zone' Date: 1936/1939 Language: English Geographic region: Kuwait-Saudi Arabia Neutral Zone