US Army Air Force
Instrument Flying, Ground Trainer (Link Trainer), Instruction Guide, USAAF WWII
This is an original WWII-era instruction guide for the Ground Trainer (i.e., Link Trainer), TO 30-100C-1 dated Aug 1943, 104 pages.
It is in very good condition given its age. It came to us from the estate of a B-17 flight instructor.