Photograph of a LearAvia Bell 47 helicopter (N8406E) parked at an airfield, circa 1974. The inscription on the slide mount points out the installed muffler.Inscription on slide mount: "Muffler in place."Typed on slide mount: "Seal edge with warm…
Photograph of a LearAvia Bell 47 helicopter lifting an oil drum, circa 1974. Inscription on slide mount: "Demo (2)."Stamped on slide mount: "Dec 74 P2."
Photograph of a LearAvia ambulance helicopter, showing the cockpit and stretchers for patients, circa 1974. Washoe Medical Center is visible in the background.Inscription on slide mount: "Ambulance copter."Stamped on slide mount: "Dec 74 P2."
Photograph of a LearAvia ambulance helicopter outside a hospital, circa 1974. Inscription on slide mount: "Ambulance copter outfitted at Lear / '74."Stamped on slide mount: "Dec 74 P2."
Photograph of a LearAvia Hughes 500C helicopter (N9127F) in front of a LearAvia hangar, circa 1971-1973. A second helicopter is visible in the background.
Photograph of William P. Lear and Wilbur Nelson seated in an experimental helicopter at the University of Michigan, circa 1960s. Inscription on verso: "WPL, Wilbur Nelson & experimental helicopter at Univ. of Michigan."
Photograph of Robert Cummings waving from the cockpit of a McCulloch MC-4 helicopter (tail number N4071K) hovering near a Lear hangar, circa 1950s. William P. Lear is standing on the left. A Learstar aircraft (tail number N9991F) is visible in the…
Photograph of (from left to right) Dr. William Randolph Lovelace, A. Scott Crossfield, and William P. Lear with a Hughes TH-55A helicopter (number N80P), Los Angeles International Airport, California, April 1960.Typed caption on verso: "Dr. W.…