Isambard Kingdom Brunel Standing Before the Launching Chains of the Great Eastern https://www.rawpixel.com/image/9085668/photo-image-ships-line-art-cigar-industrial-revolutionFree Image from public domain licenseWomen pick cotton for the U.S. Crop Corps, ca. 1943. Original public domain image from Flickr https://www.rawpixel.com/image/8770161/photo-image-hamburgers-smokes-lightFree Image from public domain licensePhotography of photograph architecture silhouette monochrome. https://www.rawpixel.com/image/13650899/photography-photograph-architecture-silhouette-monochromeView licensePhotography of photograph architecture monochrome staircase. https://www.rawpixel.com/image/13650904/photography-photograph-architecture-monochrome-staircaseView licenseTimber-shored tunnel into mine, San Juan County, Colorado. Much timber is required in mine tunnel construction and mill work… https://www.rawpixel.com/image/12109104/image-background-person-artFree Image from public domain licenseExcavating work, construction of sewage lines and sewage disposal plant, a WPA (Work Projects Administration) national… https://www.rawpixel.com/image/12108998/image-plant-hand-personFree Image from public domain licenseConversion. Copper and brass processing. This brass worker is tying down the ends of large coils of strip brass and copper.… https://www.rawpixel.com/image/12107624/image-person-art-vintageFree Image from public domain licenseBlack and white negative photograph of Apollo 3 Parachute cluster, flown vertically in 40x80 wind tunnel. Original from… https://www.rawpixel.com/image/1207213/moon-landing-photographFree Image from public domain licenseInvincible quartz mine, head of Lake Wakatipu (1888) by Burton Brothers. https://www.rawpixel.com/image/13029647/invincible-quartz-mine-head-lake-wakatipu-1888-burton-brothersFree Image from public domain license[Untitled photo, possibly related to: Horse and Mule Company, New Iberia, Louisiana] by Russell Lee https://www.rawpixel.com/image/12166834/image-cow-person-artFree Image from public domain license[Untitled photo, possibly related to: Gold miner operating pneumatic drill at Mogollon, New Mexico] by Russell Lee https://www.rawpixel.com/image/12150927/image-person-art-vintageFree Image from public domain licenseShipbuilding. "Liberty" ships. These are rolled plates for the shaft tunnel of one of Uncle Sam's new "Liberty Ships," under… https://www.rawpixel.com/image/12307062/image-plant-person-technologyFree Image from public domain license[Untitled photo, possibly related to: Mucking gold ore at mine. Mogollon, New Mexico] by Russell Lee https://www.rawpixel.com/image/12149769/image-person-art-vintageFree Image from public domain license"Bog-downs" and bottlenecks in defense plant operation are out for the duration. Maintenance crews are eternally at it to… https://www.rawpixel.com/image/12306620/image-plant-person-factoryFree Image from public domain licenseExcavating work, construction of sewage lines and sewage disposal plant, a WPA (Work Projects Administration) national… https://www.rawpixel.com/image/12149588/image-plant-hand-personFree Image from public domain licensePushing cotton seed onto conveyor. Cotton seed oil mill. McLennan County, Texas by Russell Lee https://www.rawpixel.com/image/12144072/image-person-art-vintageFree Image from public domain licensePushing cotton seed onto conveyor. Cotton seed oil mill. McLennan County, Texas by Russell Lee https://www.rawpixel.com/image/12148209/image-person-art-vintageFree Image from public domain licenseNew York, New York. Mrs. Joilet Jones, of twenty-two Morris Park, New York, on her first day on special duty at the Queens… https://www.rawpixel.com/image/12301152/image-person-women-manFree Image from public domain licensePlatform at entrance to tunnel. The gold ore taken from the tunnel requires a built-up platform at the entrance to… https://www.rawpixel.com/image/12148891/image-plant-art-vintageFree Image from public domain licenseOne of the traveling towers which connects with the central tower from which material for Shasta Dam is transported. Shasta… https://www.rawpixel.com/image/12149659/image-art-vintage-roadFree Image from public domain license[Untitled photo, possibly related to: Platform at entrance to tunnel. The gold ore taken from the tunnel requires a built-up… https://www.rawpixel.com/image/12150659/image-plant-art-skyFree Image from public domain licenseTruck which carries bulk wheat in entrance to private elevator. Touchet, Walla Walla County, Washington by Russell Lee https://www.rawpixel.com/image/12151415/image-person-art-vintageFree Image from public domain licenseTimbered tunnel leading into mine. San Juan County, Colorado. Barren mountain sides attest to the amounts of timber which… https://www.rawpixel.com/image/12148869/image-person-art-patternFree Image from public domain licenseTunnels dug into the sides of the banks of the San Miquel River in search for gold. San Miquel County, Colorado by Russell… https://www.rawpixel.com/image/12148887/image-plant-art-vintageFree Image from public domain licenseMany miles of the Southern Pacific railroad had to be enrouted and new tunnels and track constructed to take care of… https://www.rawpixel.com/image/12149406/image-plant-art-vintageFree Image from public domain license