DITTO, 14 X 33+/-, EARLY PRE WAR OD FLANNEL

US EARLY 50’S AIR FORCE “JET AGE” PHOTOGRAPHIC PHAMPLETS AND BROCHURES: TWO “NACA” (NATIONAL ADVISIRY COMMITTEE FOR AERONAUTICS) “LANGLEY FIELD, VA”. AND “CAL. – AERO TECHNICAL INSTITUTE LA.CA COLLEGE” INTRO BROUCHER / “AIR RESEARCH & DEVELOPMENT COMMAND & US AIR FORCE (1952) “HISTORY OF JET AND ROCKET AGE”, ALL FOUR ARE FINE