https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12296714Edit ImageSaveSaveEditCropCustom TextEl Paso, Texas. Phelps Dodge refining company. Interior view of casting house where copper is cast into ingots. 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 1176 x 1200 px | 300 dpiLarge JPEG 3430 x 3500 px | 300 dpiBest Quality JPEG 4865 x 4965 px | 300 dpiTIFF 4865 x 4965 px | 300 dpi | 46.09 MBFree DownloadEl Paso, Texas. Phelps Dodge refining company. Interior view of casting house where copper is cast into ingots. Sourced from the Library of Congress.More