25. File 57/1928 Pt 14 'Nejd-Koweit: Proposals for a comprehensive settlement between Ibn Saud & the Sheikh of Koweit.' Date: 1929/1931 Language: English
27. File 57/1928 Pt 16 'Iraq-Nejd Frontier: Bon Voisinage agreement between Iraq & Nejd' Date: 1930/1931 Language: English
28. File 4535/1928 Pt 7 ‘Persia. Telegraphs’ Date: 1930/1931 Language: English Geographic region: Persia
