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]."
Lithographic map of Roosevelt Field, Long Island, New York, circa 1931-1939. Several locations are noted on the map, including Learadio Laboratories (location "J").
Photograph of a hangar at Curtiss-Reynolds Field, Illinois, circa 1932. Groups of people are standing outside the hangar and on the hangar's balcony. Aircraft are partially visible through the open doors.Inscription on verso: "1932. Curtis-Reynolds…
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 a Learjet 23 aircraft (tail number N801L) taking off, possibly during its first flight, circa October 1963.Stamped on verso: "Please return to: Lear Archive, [address and telephone number in Reno, Nevada]."
Photograph of William P. Lear with his Waco UIC aircraft, circa 1933. Inscription on verso: "1935 / WPL entering 1933 Continental Powered Waco preparatory to NY Los Angeles trip when Model L DF was shown to whole USA and many CAA stations for the…
Check and agreement between the Stinson Aircraft Corporation and the Lear Development Company, circa 1933. Item has been de-framed but remains attached to mountboard.
Photograph of William P. Lear with his Stinson SR Reliant aircraft at Roosevelt Field, Mineola, New York, August 1933. Typed caption on verso: "Bill Lear seizes the opportunity to pose with his newly acquired 'Executive Model Stinson Relient [sic]'.…
Photograph of people working in the Lear Developments workshop, New York City, New York, circa 1933-1938. Electronic components, device casings, and a loop antenna are visible on the workbenches.Inscription on verso: "The Lear (1) Engineering Dept,…