Photograph of an aircraft cockpit outfitted with Learadio equipment, circa 1931-1939. Arrows point to the microphone and support and the interphone and radio transmit control and jack box.Inscription: "NA-44 / Learadio equipment installation / Rear…
Photograph of a man using a Learadio portable marker transmitter in an open field, circa 1931-1939.Inscription: "First completely portable outer or inner marker transmitter for radio compass [illegible]."
Photographic group portrait of Learadio employees outside a company building, Garden City, New York, circa 1935.Inscription on verso: "1935. Garden City L.I."Stamped on verso: "Please return to: Lear Archives, [address and telephone number in Reno,…
Photograph of four Learadio employees using a portable transmitter and receiver unit, Garden City, New York, circa 1935. The company's factory building is visible in the background.Inscription on verso: "1935 - Garden City - Long Island, New York.…
Photograph of William P. Lear with a Lear-o-Scope and loop antenna, New York City, New York, circa 1935.
Inscription on verso: "Bill Lear and his first direction finder, the Lear-o-Scope. NYC. 1935. Courtesy Lear Archives."
Typed caption on verso:…
Photograph of William P. Lear with his Lear-o-Scope-equipped Plymouth automobile, New York City, New York, circa 1935. A loop antenna is mounted to the roof of the car.
Inscription: "1935. 121 W 17 St NCY. WPL with first Lear-o-Scope."
Stamped on…
Photograph of William P. Lear with a Waco UIC aircraft (wing number NC13402), circa 1930s.Inscription on verso: "Bill Lear + his Waco Model UIC equipped with Lear-O-Scope, direction finder, + Lear-O-Phone transmitter + receiver. This is the plane…
Report about the Lear Developments automatic landing field orientation device, June 1939. Contains technical details about the device. Three typed pages on Learadio letterhead.