https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12337928Edit ImageSaveSaveEditCropCustom TextPhelps Dodge refining company, El Paso, Texas. Sheets of copper being prepared for the electrolysis tanks. 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 1200 x 1198 px | 300 dpiLarge JPEG 3500 x 3495 px | 300 dpiBest Quality JPEG 5070 x 5063 px | 300 dpiTIFF 5070 x 5063 px | 300 dpi | 48.99 MBFree DownloadPhelps Dodge refining company, El Paso, Texas. Sheets of copper being prepared for the electrolysis tanks. Sourced from the Library of Congress.More