[Untitled photo, possibly related to: Boeing aircraft plant, Seattle, Washington. Production of B-17F (Flying Fortress)… https://www.rawpixel.com/image/12295407/photo-image-plant-person-planesFree Image from public domain licenseBingham Canyon, Utah. Huge dipper of a power shovel loading ore into a car at a mine of the Utah Copper Company. Sourced… https://www.rawpixel.com/image/12295831/photo-image-sky-public-domain-architectureFree Image from public domain license