1. Coll 5/1 ‘Persian Gulf Air Routes: Hasa Coast & Flying over Nejd territory — Saudi regulations for the landing of foreign aircraft’ Date: 1931/1937 Language: English Geographic region: Saudi ArabiaHasa
2. Coll 5/4 ‘Afghanistan: Kabul-India Civil Air Service — Air Convention & the NWF prohibited area’ Date: 1930/1932 Language: English Geographic region: Afghanistan
3. Coll 5/8 ‘Persia: Development of Commercial Aviation — Junkers Air Service’ Date: 1924/1938 Language: English Geographic region: PersiaIran
4. Coll 5/9 ‘Air Route to India, Persia: Abandonment of South Persian Route — Negotiations with Persian Government’ Date: 1931/1933 Language: English Geographic region: Persia
