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."
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.
Photographic slide of a Lear Motors steam engine installed in a Chevrolet Monte Carlo, circa 1970-1973.Inscription on slide: "Mont [sic] Carlo steam instal."