[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[Untitled photo, possibly related to: Baring (vicinity), Missouri. Missouri farmstead along the Atchison, Topeka, and Santa… https://www.rawpixel.com/image/12290014/photo-image-cloud-plant-skyFree Image from public domain licenseUtuado, Puerto Rico (vicinity). Farm woman doing needlework under contract to a factory in town. Sourced from the Library of… https://www.rawpixel.com/image/12282120/photo-image-face-person-artFree Image from public domain licenseGeneral view of propeller grinding and finishing operations at Hamilton Standard Propeller Corporation. East Hartford… https://www.rawpixel.com/image/12277661/photo-image-person-public-domain-factoryFree Image from public domain licenseBank and store. Creedmoor, North Carolina. Sourced from the Library of Congress. https://www.rawpixel.com/image/12275307/photo-image-person-horse-roadFree Image from public domain license