Lot of AAF WWII Tech Orders, all dated 1944-1945. 3-hole punched, stapled, 8.5x11", approximately 17 (about 2" thick stack). Subjects include parts catalogs for radiators; operations and service instructions for spark plug test stands, prop governor test units, microfilm equipment, ignition harness testers, etc. Frankly, too many to list especially for the price. All intact and in at least good condition.