Columbia Steel Company at Geneva, Utah. Brick kilns under construction near the site of a new steel mill which, when… https://www.rawpixel.com/image/12297321/photo-image-person-sky-public-domainFree Image from public domain licenseWashington D.C. News photographers making movies. Transplanting a tree on emergency office space construction job. Sourced… https://www.rawpixel.com/image/12288421/photo-image-person-space-skyFree Image from public domain licenseLumber in Columbia River for sawmills at Longview, Washington. Sourced from the Library of Congress. https://www.rawpixel.com/image/12267602/photo-image-plant-person-skyFree Image from public domain licenseFarmers' cooperative grain elevator. Richmond, Kansas. Sourced from the Library of Congress. https://www.rawpixel.com/image/12266523/photo-image-cloud-sky-public-domainFree Image from public domain license[Untitled photo, possibly related to: Columbia Steel Company at Geneva, Utah. Metal casings for concrete piles that will… https://www.rawpixel.com/image/12297751/photo-image-person-sky-public-domainFree Image from public domain license[Untitled photo, possibly related to: Construction of Dimension Plant at Tygart Valley, West Virginia]. Sourced from the… https://www.rawpixel.com/image/12248236/photo-image-cloud-plant-skyFree Image from public domain licenseZinc smelter. Ottawa County, Oklahoma. Sourced from the Library of Congress. https://www.rawpixel.com/image/12265694/photo-image-person-sky-public-domainFree Image from public domain licenseColumbia Steel Company at Geneva, Utah. Brick kilns under construction near the site of a new steel mill which, when… https://www.rawpixel.com/image/12297929/photo-image-person-sky-animalFree Image from public domain licenseCircular barn near Enosburg Falls, Vermont. Sourced from the Library of Congress. https://www.rawpixel.com/image/12280212/photo-image-plant-person-skyFree Image from public domain licenseBethlehem-Fairfield shipyards, Baltimore, Maryland. Shaft alley stockpile. Sourced from the Library of Congress. https://www.rawpixel.com/image/12293111/photo-image-art-airplane-public-domainFree Image from public domain license