25. Coll 30/227 'Water Supply for Koweit (Distilling Plant)' Date: 1947/1948 Language: English Geographic region: Kuwait
26. Coll 29/32 'Duzdap (Zahidan): water supply; effect of the closure of the Duzdap railway' Date: 1931/1936 Language: English
27. File 1880/1904 Pt 1 'Perso-Afghan Frontier: - Seistan Arbitration.' Date: 1903/1910 Language: English Geographic region: HelmandSeistanPersiaAfghanistan
30. File 451/1913 Pt 1-2 'Koweit and Bahrein: Oil Deposits. Water Supply.' Date: 1912/1918 Language: English Geographic region: BahrainFarasan IslandsSyriaKuwait