Historical information
Signal codes used by Royal Air Force. This booklet was authorised by Sir Donald Banks, Secretary of the British Air Ministry . He was responsible for setting up the Empire Air Training Scheme . He travelled to Australia and New Zealand to discuss the manufacture of aircraft in those countries such as Wirraways and Beaufighters.
Physical description
Orange cardboard cover with 40 buff coloured pages.
Inscriptions & markings
For official use only. Air Publication 1632, March 1938. Issued for the information and guidance of all concerned. By command of the Air Council (signed) Donald Banks. Air Ministry
