25. File 2794/1921 Pt 3B 'Persian Gulf: oil; Kuwait' Date: 1932/1933 Language: English Geographic region: Kuwait
27. File 2794/1921 Pt 3 'Persian Gulf: Oil: Koweit' Date: 1925/1931 Language: English Geographic region: KuwaitBahrain
28. File 2794/1921 Pt 3 'Persian Gulf: Oil: Koweit.' Date: 1931/1932 Language: English Geographic region: Kuwait