Chicago, Illinois. Sign at the Union Station. Sourced from the Library of Congress. https://www.rawpixel.com/image/12290724/photo-image-public-domain-factory-natureFree Image from public domain license
Bayamon, Puerto Rico (vicinity). A pineapple canning factory. Sourced from the Library of Congress. https://www.rawpixel.com/image/12284338/photo-image-face-paper-handFree Image from public domain license
Washington, D.C. Postage stamp coiling machine at the United States Bureau of Engraving and Printing. Sourced from the… https://www.rawpixel.com/image/12267783/photo-image-paper-person-artFree Image from public domain license
Factory Built Scructure Organization Industrial Concept https://www.rawpixel.com/image/961832/free-image-rawpixelcomView license
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/12297929/photo-image-person-sky-animalFree Image from public domain license
In the "Denomah" textile mill. Taftville, Connecticut. Sourced from the Library of Congress. https://www.rawpixel.com/image/12277706/photo-image-person-technology-public-domainFree Image from public domain license
[Untitled photo, possibly related to: An abandoned cotton gin north of Franklin, Heard County. It used to gin more cotton in… https://www.rawpixel.com/image/12279098/photo-image-shadow-person-public-domainFree Image from public domain license
Sawing lead blocks for making cuts. Office of the Valley News. Browns Valley, Minnesota. Sourced from the Library of… https://www.rawpixel.com/image/12282356/photo-image-face-person-technologyFree Image from public domain license
[Untitled photo, possibly related to: Chicago, Illinois. Workmen studying blueprints in the Chicago and Northwestern… https://www.rawpixel.com/image/12288834/photo-image-person-public-domain-factoryFree Image from public domain license