Notes written by William P. Lear about the utility of automatic direction finders, circa 1940. Describes a flight from New York to Dayon, Ohio in Lear's Waco aircraft and how a Lear ADF-8 helped him navigate despite static from a thunderstorm.…
Brochure containing six advertisements for Lear Avia and Lear, Incorporated products, circa 1944. The ads describe the wartime utility of electric motors and actuators, and ask potential customers for ideas on how the products can be similarly useful…