US Air Force
Theory of Instrument Flying, US Air Force, 1954, AF Manual 51-38
This is an original Cold War-era US Air Force manual Theory of Instrument Flying, dated April 1954. Part 1 contains Basic Aircraft Control and Instrument Interpretation, Part 2 addresses Navigation, and Part 3 reviews Weather. The manual very competently describes how instruments of the era work, and how they are applied to the conditions of flight and the environment.
It is in exceptional condition. Contains over 300 pages in a soft cover format.