Make it Yours.Remix, add effects & personalize with your own textCustomizeOr start from these designshttps://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12302799Edit ImageSaveSaveEditCropCustom TextProduction. Copper (refining). Casting machine in a large copper refining operation. Here sheets of pure copper formed by electrolysis are melted and cast into ingots. Large amounts of copper are produced for the war effort at the El Paso, Texas plant of Phelps-Dodge Refining Company. Sourced from the Library of Congress.MoreProduction. Copper (refining). Casting machine in a large copper refining operation. Here sheets of pure copper formed by electrolysis are melted and cast into ingots. Large amounts of copper are produced for the war effort at the El Paso, Texas plant of Phelps-Dodge Refining Company. Sourced from the Library of Congress.View public domain image source hereMorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGTIFFSmall JPEG 1172 x 1200 px | 300 dpiLarge JPEG 3420 x 3500 px | 300 dpiBest Quality JPEG 4899 x 5014 px | 300 dpiTIFF 4899 x 5014 px | 300 dpi | 46.87 MBFree Download