https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12315167Edit ImageSaveSaveEditCropCustom Text[Untitled photo, possibly related to: Tapping a blast furnace for slag, Pittsburgh, Pennsylvania]. 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 863 x 1200 px | 300 dpiLarge JPEG 2516 x 3500 px | 300 dpiBest Quality JPEG 3123 x 4345 px | 300 dpiTIFF 3123 x 4345 px | 300 dpi | 25.9 MBFree Download[Untitled photo, possibly related to: Tapping a blast furnace for slag, Pittsburgh, Pennsylvania]. Sourced from the Library of Congress.More