Gray smoke abstract background vector https://www.rawpixel.com/image/591768/smoke-black-backgroundView license[Untitled photo, possibly related to: Washington, D.C. Steam cleaning a bank building at 14th and G Streets, N.W.]. Sourced… https://www.rawpixel.com/image/12270911/photo-image-steam-person-smokeFree Image from public domain licenseGray smoke abstract background vector https://www.rawpixel.com/image/591772/smoke-black-backgroundView licenseYellow smoke abstract background vector https://www.rawpixel.com/image/591714/smoke-black-backgroundView licenseChillicothe, Illinois. Changing crews and cabooses of a westbound freight train along the Atchison, Topeka and Santa Fe… https://www.rawpixel.com/image/12289806/photo-image-steam-person-skyFree Image from public domain licenseChicago, Illinois. Locomotives lined up for coal, sand and water at the coaling station in the yard of the Chicago and… https://www.rawpixel.com/image/12301217/image-steam-person-smokeFree Image from public domain license[Untitled photo, possibly related to: Loading cars with giant power shovel at Danube iron mine near Bovey, Minnesota].… https://www.rawpixel.com/image/12285028/photo-image-cloud-person-skyFree Image from public domain license[Untitled photo, possibly related to: Railroad yards. Conway, Pennsylvania]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12283559/photo-image-steam-sky-smokeFree Image from public domain licenseGray smoke abstract background vector https://www.rawpixel.com/image/591798/smoke-black-backgroundView licenseUnderpass in central Ohio, Route 40 (see general caption). Sourced from the Library of Congress. https://www.rawpixel.com/image/12255279/photo-image-sky-smoke-roadFree Image from public domain licenseBingham Canyon, Utah. Ore train at a mine of the Utah Copper Company. Sourced from the Library of Congress. https://www.rawpixel.com/image/12295747/photo-image-steam-sky-smokeFree Image from public domain licenseGray smoke abstract background vector https://www.rawpixel.com/image/591779/smoke-black-backgroundView license[Untitled photo, possibly related to: Columbia Steel Company at Ironton, Utah. Looking upon coke ovens. The steam indicates… https://www.rawpixel.com/image/12297759/photo-image-cloud-steam-personFree Image from public domain licenseWhite smoke abstract on purple background vector https://www.rawpixel.com/image/591791/smoke-purple-backgroundView licenseRailroad yards at Punxsutawney, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12276302/photo-image-cloud-plant-skyFree Image from public domain license[Untitled photo, possibly related to: Chicago, Illinois. Engines lined up at coaling station at an Illinois Central Railroad… https://www.rawpixel.com/image/12290864/photo-image-person-smoke-public-domainFree Image from public domain licenseYellow smoke abstract background vector https://www.rawpixel.com/image/591738/smoke-black-backgroundView licenseSteam shovel loading truck, Chicago, Illinois. Sourced from the Library of Congress. https://www.rawpixel.com/image/12261120/photo-image-steam-person-skyFree Image from public domain licenseChicago, Illinois. The turntable at the roundhouse at an Illinois Central Railroad yard. Sourced from the Library of… https://www.rawpixel.com/image/12290836/photo-image-steam-person-smokeFree Image from public domain licenseGray smoke abstract background vector https://www.rawpixel.com/image/591757/smoke-black-backgroundView licenseRed smoke abstract background vector https://www.rawpixel.com/image/591859/smoke-black-backgroundView license[Untitled photo, possibly related to: Topeka, Kansas. Hammering out a drawbar at the giant steam hammer in the smith shop of… https://www.rawpixel.com/image/12291450/photo-image-steam-person-smokeFree Image from public domain licenseRed smoke abstract background vector https://www.rawpixel.com/image/591807/smoke-black-backgroundView licenseBlue smoke abstract background vector https://www.rawpixel.com/image/591848/smoke-black-backgroundView licenseAn Atchison, Topeka, and Santa Fe passenger train passing an eastbound freight train carrying stock. Steam at the head end… https://www.rawpixel.com/image/12290302/photo-image-steam-sky-smokeFree Image from public domain licenseChicago, Illinois. Getting water for an engine at a Chicago and Northwestern coaling station. Sourced from the Library of… https://www.rawpixel.com/image/12301202/image-person-sky-smokeFree Image from public domain licenseGuanica, Puerto Rico (vicinity). Freight train used in hauling cane to the sugar mills from loading stations. Sourced from… https://www.rawpixel.com/image/12280927/photo-image-cow-person-horseFree Image from public domain licenseCarloads of iron ore at Mahoning pit. Hibbing, Minnesota. Sourced from the Library of Congress. https://www.rawpixel.com/image/12285057/photo-image-sky-smoke-public-domainFree Image from public domain licenseKiowa, Kansas. Freight train pulling out on the Atchison, Topeka and Santa Fe Railroad between Wellington, Kansas and… https://www.rawpixel.com/image/12290110/photo-image-sky-smoke-public-domainFree Image from public domain license[Untitled photo, possibly related to: Chicago, Illinois. Washing a locomotive at the coaling station at an Illinois Central… https://www.rawpixel.com/image/12290585/photo-image-steam-smoke-public-domainFree Image from public domain licenseChicago, Illinois. Locomotive taking on sand at an Illinois Central Railroad yard, before going out on the road. Sourced… https://www.rawpixel.com/image/12290593/photo-image-smoke-road-sandFree Image from public domain licenseChicago, Illinois. Engines lined up at coaling station at an Illinois Central Railroad yard. Sourced from the Library of… https://www.rawpixel.com/image/12290875/photo-image-steam-smoke-public-domainFree Image from public domain license