Photograph of William P. Lear (right) showing an engine part to an unidentified man, circa 1970s. Inscription: "Yes! 50,000 R.P.M. and 250 H.P."Stamped on verso: "Art Alanis / Photographic Illustration."
Photographic slide of the Lear Vapor Turbine System installed in the Lear steam-powered bus, circa February 1972. Inscription on slide: "System in bus / Sacramento Steam Bus Show."Stamped on slide: "7 Feb 72P7."
Photographic slide of William P. Lear (center) and Lear Motors employees in a shop, circa 1970s. Some of the employees are partially identified in the inscription.Inscription on slide: "WPL, J. Carson, R. McDond., John..."
Photograph of William P. Lear and Moya O. Lear with the Lear steam-powered bus, circa 1970s. The bus's hood is open, showing the Lear Vapor Turbine System.