Photograph of Martin B-10/B-12 aircraft undergoing disassembly and repair at the Sacramento Air Depot, California, circa, 1940s.
Inscription on verso: "S.A.D. circa 1940. Martin B-10 rework."
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 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…
Photograph of men working in a factory, circa 1917-1919.Part of a scrapbook containing items related to Sidney Van Wyck Peters' service with the 24th Aero Squadron during World War I, circa 1917-1919.
Photograph of men working on aircraft ignitions-starters and generators at the Sacramento Air Depot, California, March 20, 1940.
Inscription: "Ignition-starters and [generators]. Eng. Dept. S.A.D. 3-20[-40]. S.A.D. 40-114."
Photograph of two men working with radio components in a LearAvia facility, circa 1970s. Inscription on slide mount: "Radio shop in hangar bldg / P-46."