https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12310585Edit ImageSaveSaveEditCropCustom TextSlate for roofing, Greenbelt, 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 903 px | 300 dpiLarge JPEG 3500 x 2632 px | 300 dpiBest Quality JPEG 4325 x 3253 px | 300 dpiTIFF 4325 x 3253 px | 300 dpi | 26.84 MBFree DownloadSlate for roofing, Greenbelt, Maryland. Sourced from the Library of Congress.More