This item belonged to Mary Southworth who trained to be a pilot in the early 1950's.
WW1 1915 BSA LEWIS MACHINE GUN Manual British Army RFC RAF Aircraft Handbook
Original Handbook Of The Marlin Aircraft Machine Gun Model of 1917 Rev 25/04/18
Handbook of Wireless Telegraphy Volumes 1 and 2 Admiralty 1938 Hardback
A Handbook of Civil War Bullets & Cartridges, By James E. and Dean S. Thomas
