New here.
As a comparison & as a matter of general interest.
My late Father's Copy has the number "S.E. 93A-41" & is "Third Edition"
The frontispiece also has, "Built for BRITISH WAR DEPARTMENT".
My Dad was an S/Sgt Instructor at 4MD MVTTC in Adelaide.
Also with it is a USA War Department "Automotive Electricity" Technical Manual TM 10 - 580. Jan. 1941 & a couple of Mapping Instruction books.
Des