Pamphlet issued to incoming students of the Boeing Flying Fortress School, Seattle, Washington, circa 1940s. Contains the following sections: Introduction -- Secrecy -- Material for study -- Study Hall -- Grades -- Badges Airplane in general --…
Pamphlet about Learadio aircraft radio equipment, circa 1930s. Contains technical specifications and images of various models of transmitters, receivers, power supplies, and accessories. 41 pages.