https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12267982Edit ImageSaveSaveEditCropCustom TextConstruction of an acid pit. Berwyn, Maryland. 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 957 px | 300 dpiLarge JPEG 3500 x 2791 px | 300 dpiBest Quality JPEG 15721 x 12538 px | 300 dpiTIFF 15721 x 12538 px | 300 dpi | 376.1 MBFree DownloadConstruction of an acid pit. Berwyn, Maryland. Sourced from the Library of Congress.More