Browse Items (1093 total)

Photograph of a man working on the wing section of the Learjet 23 prototype, July 25, 1963. The forward fuselage section is visible in the background.Inscription on verso: "P3-E / July 25, 1963."

Photograph of a man working with emission test equipment at a Lear Motors facility, circa 1970-1972.Typed caption: "Emission test equipment / Lear Motors Corporation."Stamped on verso: "Lear Motors Corp. Proprietary."

Photograph of a manufacturing area at a Lear Fan facility, circa 1980s.

Photograph of a manufacturing area at a Lear Fan facility, circa 1980s.

Memorandum to Lear Jet employees from Bob Hagan, Manufacturing Superintendent and Chief of Flight Test, October 9, 1963. Sends thanks and congratulations to employees for a job well done and shares highlights from the test flight of the Learjet 23.…

Photographic slide of men and women using drill presses in a machine shop at a Lear, Incorporated facility, Grand Rapids, Michigan, September 1954. A small chalkboard in the scene reads: "Drill presses / Machine shop."Inscription on slide: "Lear.…

Photograph of five men at a press conference held at the Hotel des Bergues, Geneva, Switzerland, June 30, 1956. The men are identified by last name and title (in French) on a piece of velum attached to the print.Inscription: "9 Monsieur KÖSSLER…

Photograph of three men conducting tests on the Learjet 23 prototype, March 16, 1964.Inscription on verso: "Flight test instruction for ground test / T-76-3A / 3-16-64."

Photograph of men installing a new engine in the Learjet 23 prototype, February 21, 1964.Inscription on verso: "Installing new engine on Jet #1 / 2-21-64."

Photograph of two men looking at the door of the Learjet 23 prototype, February 18, 1964. A third man is visible inside the aircraft performing a test with an oscillograph.Inscription on verso: "Direct read out oscillograph loaned from Century…