Streetcars in car barn, Minneapolis, Minnesota. Sourced from the Library of Congress. https://www.rawpixel.com/image/12312645/image-public-domain-window-architectureFree Image from public domain licenseEarly spring ignitions to burn conifir trees and restore aspen stands. Forest Service photo by Jason Kling. Original public… https://www.rawpixel.com/image/4034559/photo-image-plant-smoke-fireFree Image from public domain licenseVacuum Sugar Apparatus by Claude Marie Ferrier and Hugh Owen https://www.rawpixel.com/image/14313084/vacuum-sugar-apparatus-claude-marie-ferrier-and-hugh-owenFree Image from public domain licenseFreight operations on the Indiana Harbor Belt railroad between Chicago, Illinois and Hammond, Indiana. The crew leaves with… https://www.rawpixel.com/image/12337503/image-person-fire-leavesFree Image from public domain licenseWestport, Connecticut. Commuter kissing his wife before catching train for New York. Sourced from the Library of Congress. https://www.rawpixel.com/image/12286038/photo-image-person-smoke-roadFree Image from public domain licenseFreight operations on the Indiana Harbor Belt railroad between Chicago, Illinois and Hammond, Indiana. In the background… https://www.rawpixel.com/image/12291346/photo-image-background-person-public-domainFree Image from public domain license[Untitled photo, possibly related to: Vaughn, New Mexico. A train on the Atchison, Topeka and Santa Fe Railroad passing a… https://www.rawpixel.com/image/12292505/photo-image-fire-sky-smokeFree Image from public domain license[Untitled photo, possibly related to: Chicago, Illinois. General view of south classification yard at an Illinois Central… https://www.rawpixel.com/image/12290602/photo-image-sky-smoke-public-domainFree Image from public domain license[Untitled photo, possibly related to: Abandoned coal tipple near Osage, West Virginia]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12248227/photo-image-sky-public-domain-basketballFree Image from public domain licenseYabucoa, Puerto Rico (vicinity). Procession of sugar strikers through a small town. Sourced from the Library of Congress. https://www.rawpixel.com/image/12284070/photo-image-dog-person-animalFree Image from public domain licenseFire Exit Emergency Attention Sign https://www.rawpixel.com/image/330616/image-rawpixelcomView licenseChicago, Illinois. Brakeman going on the late afternoon shift, waiting to hop an engine to take him to his place of work in… https://www.rawpixel.com/image/12290587/photo-image-person-sky-smokeFree Image from public domain license[Untitled photo, possibly related to: Packing company strike. Cambridge, Maryland]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12272640/photo-image-person-sky-roadFree Image from public domain license[Untitled photo, possibly related to: At a New England Dairies creamery in Enosburg Falls, Vermont]. Sourced from the… https://www.rawpixel.com/image/12280819/photo-image-person-sky-public-domainFree Image from public domain licenseYabucoa, Puerto Rico. Sugar strikers picketing a sugar plantation. Sourced from the Library of Congress. https://www.rawpixel.com/image/12282815/photo-image-dog-people-treeFree Image from public domain license[Untitled photo, possibly related to: Chicago, Illinois. Southbound freight train leaving an Illinois Central Railroad… https://www.rawpixel.com/image/12290654/photo-image-person-sky-smokeFree Image from public domain licenseChicago, Illinois. A train pulling out of a Chicago and Northwestern Railroad yard. Sourced from the Library of Congress. https://www.rawpixel.com/image/12301182/image-cloud-frame-fireFree Image from public domain licenseNew York, New York. Waiting for the trains at the Pennsylvania railroad station. Sourced from the Library of Congress. https://www.rawpixel.com/image/12287854/photo-image-people-public-domain-manFree Image from public domain licenseChicago, Illinois. One of the yard gang cleaning out switches at an Illinois Central Railroad yard. Sourced from the Library… https://www.rawpixel.com/image/12290533/photo-image-person-sky-public-domainFree Image from public domain licenseBurlington, North Carolina. Trailers destroyed in a fire at the Associated Transport Company terminal. Sourced from the… https://www.rawpixel.com/image/12292586/photo-image-fire-sky-public-domainFree Image from public domain licenseNew York, New York. Looking north from the 9th Street station on the Third Avenue elevated railway as a train leaves on the… https://www.rawpixel.com/image/12289771/photo-image-person-leaves-roadFree Image from public domain licenseCarlisle, Pennsylvania. Fire chief and driver. Sourced from the Library of Congress. https://www.rawpixel.com/image/12292410/photo-image-person-fire-public-domainFree Image from public domain licenseA German army Marder infantry fighting vehicle with the 391st Mechanized Infantry Battalion lays suppressive fire at Vaziani… https://www.rawpixel.com/image/8728211/photo-image-fire-public-domainFree Image from public domain license