https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12322042Edit ImageSaveSaveEditCropCustom TextZinc smelter worker. Picher, Oklahoma. 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 1088 px | 300 dpiLarge JPEG 3500 x 3174 px | 300 dpiBest Quality JPEG 5232 x 4744 px | 300 dpiTIFF 5232 x 4744 px | 300 dpi | 47.34 MBFree DownloadZinc smelter worker. Picher, Oklahoma. Sourced from the Library of Congress.More