Winslow, Arizona. An engineer climbing into the cab of a diesel freight engine in the Atchison, Topeka and Santa Fe Railroad… https://www.rawpixel.com/image/12293758/photo-image-face-person-skyFree Image from public domain licenseHybrid Electronic Green Energy Motor Concept https://www.rawpixel.com/image/755583/free-image-rawpixelView licenseHybrid Electronic Green Energy Motor Concept https://www.rawpixel.com/image/755623/free-image-rawpixelView license[Untitled photo, possibly related to: Diesel engines at electric power station near Burrwood, Louisiana] by Russell Lee https://www.rawpixel.com/image/12168463/image-art-vintage-technologyFree Image from public domain license[Untitled photo, possibly related to: Switching a train with a diesel switch engine on the Chicago and Rock Island… https://www.rawpixel.com/image/12292785/photo-image-face-person-skyFree Image from public domain licenseBlue Island, Illinois. Switchman riding the footboard of a diesel switch engine on the Chicago and Rock Island Railroad.… https://www.rawpixel.com/image/12293067/photo-image-person-public-domain-blueFree Image from public domain license[Untitled photo, possibly related to: Chicago, Illinois. Diesel switch engine working at the South Water Street, Illinois… https://www.rawpixel.com/image/12292791/photo-image-person-sky-roadFree Image from public domain license