Photographic slide of William P. Lear (left) and Don Holms (right) in the fabrication shop at a Lear Motors Corporation building, circa 1970-1972.Inscription on slide: "WPL / Fab shop / Don Holms / Box 5."
Photographic slide of employees working at drafting tables in a Lear Motors Corporation building, circa 1970-1972.Inscription on slide: "Drafting section LMC."
Photographic slide of an employee working in the machine shop at a Lear Motors Corporation building, 1970-1972.Inscription on slide: "Wolf / Machine shop."
Oblique aerial photograph of Lear facilities and surrounding area, circa 1970-1972. The labels read "Lear Jet Service Center," "Lear Motors Corporation," and "Prime Plastics."Inscription on verso: "Box 43 / Folder 1075."
Photograph of the test fuselage of the Learjet 23 prototype undergoing structure testing at a Lear facility, March 17, 1964.Inscription: "T76-1B / 3-17-64."Inscription on verso: "Structure testing."
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 the test fuselage of the Learjet 23 prototype at a Lear facility, February 29, 1964.Inscription on verso: "Overall shot of test fuselage / 2-29-64."
Photograph of the Learjet 23 prototype undergoing a fuselage side-bending test, February 25, 1964.Text on sign: "Fuselage side bending static test / 0% ultimate / 25 Feb. 1964."Inscription on verso: "T58-4A / 2-25-64."