Browse Items (32 total)

Photograph of employees working in the drafting and engineering room at a Lear Avia facility, Ohio, circa 1940s.Typed caption on verso: "Drafting and engineering room at Dayton Plant."Inscription on verso: "Drafting and engineering."

Photograph of employees working in a Lear Avia office, Vandalia, Ohio, circa 1941.Inscription: "Vandalia office. 1941."Inscription on verso: "General office -- Boyles at my desk just for the effect. A.M."

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

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

Photograph of a Learadio portable receiver, circa 1930s-1940s.Inscription: "Portable 2-band battery-operated receiver used thru-out WW2 by many USAF [personnel?] here and all over world."