Photograph of an aircraft instrument panel equipped with a Learadio device, circa 1941.Inscription: "1941. [Amphibian?] with first dry-cell operated trans-rec[cut off]. [illegible] watt. Range 300 miles."
Photograph of a Douglas DC-3 instrument panel with a Learadio ADF 8 automatic direction finder, circa 1940s. The direction finder and two gauges are circled and numbered. Inscription on verso: "Copy of instrument panel (Chicago and [illegible]…
Photograph of a Learadio Beech 17R Staggerwing aircraft, circa 1930s-1940s.Stamped on verso: "Please credit Hans Groenhoff, [crossed out telephone number and address in New York City, New York]."
Photograph of a Learadio Beech 17R Staggerwing aircraft, circa 1930s-1940s.Stamped on verso: "Please credit Hans Groenhoff, [crossed out telephone number and address in New York City, New York]."Note attached to verso: "[letterhead: Norman Warren] /…
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…
Photograph of William P. Lear holding the Lear Radio-Aire, Chicago, Illinois, circa 1932. Inscription: "The first Radio Aire / Bill / 1932."Inscription on verso: "Bill Lear + his first airplane radio, the Lear Radio-Aire. Chicago, 1932. Photo…
Photograph of three men with a Waco UIC aircraft, circa 1920s-1930s. The verso inscription identifies two of the men as Wayne Thomis, Aviation editor for the "Chicago Tribune," and Howard Ailor, Waco salesman. The text "Equipped with Lear Radio…
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 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:…