RAAF Publication No 175 June 1941. Blue buckram hard cover book loosely bound & held together by a shoe lace. Light blue binding, black printing, 110 pages. Illustrated with photos & examples of RAAF message forms.books-military/education/air force, w/t operators, raaf

Full title: Initial Training Schools, Principles of Flight, Notes for Education Officers. Khaki colour soft cover, black print, 27 pages. Regarding aeroplane flight & illustrated with numerous diagrams.1st page stamped: “A Marriott”books-military/air force/manuals, principles, raaf