Miner using telephone at 500-foot level at gold mine. Mogollon, New Mexico by Russell Lee https://www.rawpixel.com/image/12173062/image-person-art-vintageFree Image from public domain licenseLas Vegas, Nevada. Giant silos, eighty-four feet high, for the storage of ore for the manufacture of magnesium, on the… https://www.rawpixel.com/image/12297385/photo-image-public-domain-factory-architectureFree Image from public domain licenseSummit, California. The brakeman opening the retainer valve on a car on the Atchison, Topeka and Santa Fe Railroad between… https://www.rawpixel.com/image/12294103/photo-image-person-sky-roadFree Image from public domain licenseLas Vegas, Nevada. A billboard on the grounds of the gigantic plant of Basic Magnesium Incorporated, showing tracer bullets… https://www.rawpixel.com/image/12299924/image-background-plant-personFree Image from public domain licenseLas Vegas, Nevada. A rear view of some of the structures of the Basic Magnesium Incorporated plant, showing at the far right… https://www.rawpixel.com/image/12297894/photo-image-shadow-plant-skyFree Image from public domain license[Untitled photo, possibly related to: Hay barn on farm at foot of Wasatch Mountains. Box Elder County, Utah] by Russell Lee https://www.rawpixel.com/image/12150249/image-plant-art-skyFree Image from public domain licenseColumbia Steel Company at Geneva, Utah. Footings for open hearth furnaces for a new steel plant under construction which… https://www.rawpixel.com/image/12297948/photo-image-plant-public-domain-natureFree Image from public domain license[Untitled photo, possibly related to: Feet of a farm woman, who together with two children runs a rented farm. Near… https://www.rawpixel.com/image/12277255/photo-image-face-shadow-personFree Image from public domain license[Untitled photo, possibly related to: Feet of a farm woman, who together with two children runs a rented farm. Near… https://www.rawpixel.com/image/12278985/photo-image-face-shadow-personFree Image from public domain license[Untitled photo, possibly related to: Las Vegas, Nevada. Giant silos, eighty-four feet high, for the storage of ore for the… https://www.rawpixel.com/image/12298151/photo-image-plant-sky-public-domainFree Image from public domain license[Untitled photo, possibly related to: Diesel freight train on the Atchison, Topeka and Santa Fe Railroad between Winslow and… https://www.rawpixel.com/image/12292649/photo-image-cloud-sky-woodFree Image from public domain licenseMale Nude Standing, Separ (1858) by Daniel Huntington. Original from The Smithsonian. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2478560/free-illustration-image-foot-vintageFree Image from public domain license