Scallop-edged annealed band; set with seven elliptical cabochon turquoises (possibly Stennich). Original from the… https://www.rawpixel.com/image/7654389/photo-image-vintage-art-public-domainFree Image from public domain licenseAnnealed band; set with single elliptical cabochon turquoise; repousse and stamped design, central green turqouise(Cracked… https://www.rawpixel.com/image/7654319/photo-image-vintage-art-public-domainFree Image from public domain licenseConversion. Copper and brass processing. Pickling lengths of copper water tube in a brass and copper mill. After annealing… https://www.rawpixel.com/image/12307140/image-factory-water-drawingFree Image from public domain licenseConversion. Copper and brass processing. The inside of a large brass and copper tube mill. Copper tubes are made in many… https://www.rawpixel.com/image/12107317/image-art-vintage-airplanesFree Image from public domain licenseConversion. Copper and brass processing. Drawing seamless copper tube. Rough cast tubes tapered at one end to fit through a… https://www.rawpixel.com/image/12306817/image-person-factory-manFree Image from public domain licenseGreat Falls, Montana. Anaconda Wire and Cable Company. Removing annealed wire from furnace; in this furnace, wire is heated… https://www.rawpixel.com/image/12151953/image-person-art-vintageFree Image from public domain licenseProduction. M-4 tanks. Arthur Hale, tool maker with the American Locomotive Company for forty years, is shown upsetting a… https://www.rawpixel.com/image/12306695/image-face-plant-personFree Image from public domain licenseConversion. Copper and brass processing. The inside of a large brass and copper tube mill. Copper tubes are made in many… https://www.rawpixel.com/image/12107331/image-person-art-vintageFree Image from public domain licenseGreat Falls, Montana. Anaconda Wire and Cable Company. After the annealing process, the treated wire is washed in water by… https://www.rawpixel.com/image/12151929/image-person-art-vintageFree Image from public domain licenseProduction. M-4 tanks. Arthur Hale, tool maker with the American Locomotive Company for forty years, operates a milling… https://www.rawpixel.com/image/12307611/image-person-technology-factoryFree Image from public domain licenseConversion. Copper and brass processing. This is the inlet end of a conveyor furnace. The rolls of strip brass and copper… https://www.rawpixel.com/image/12306878/image-plants-person-airplaneFree Image from public domain licenseConversion. Copper and brass processing. Drawing seamless copper tube. Rough cast tubes tapered at one end to fit through a… https://www.rawpixel.com/image/12306751/image-person-factory-manFree Image from public domain license