Browse Items (32 total)

Photograph of employees working in the mechanical department at a Lear Avia facility, Ohio, circa 1940s. Inscription: "Over."Typed caption on verso: "Assembly line at Dayton Plant."Inscription on verso: "Mechanical Dept. Not completed when this…

Photograph of employees working in the machine shop at a Lear Avia facility, Ohio, circa 1940s. Typed caption on verso: "Machine shop at Dayton Plant." Inscription on verso: "Mechanical Dept."

Photograph of employees working in the model shop at a Lear Avia facility, Vandalia, Ohio, circa 1940.Inscription: "Vandalia. 1940 Eng. Dept. model shop."Inscription on verso: "Archives. Note written in WPL hand."

Photograph of the assembly line at a Lear Avia facility, Vandalia, Ohio, circa 1940. Male and female employees work on device components at long work tables.Inscription: "Lear Avia assbly [assembly] line -- 1940. Vandalia."Inscription on verso: "View…

Photograph of the assembly line at a Lear Avia facility, Vandalia, Ohio, circa 1940. Male and female employees work on device components at long work tables.Inscription on verso: "Assembly."

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 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 Learadio Model RCB receiver tuning unit, circa 1930s-1940s.

Photograph of a Learadio radio compass tuning unit, circa 1930s-1940s.

Photograph of a Learadio automatic direction finder, circa 1940.Inscription: "Manual loop antenna rotator and directional indicator. 1940."