https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12255173Edit ImageSaveSaveEditCropCustom TextBlackboard in Ozark school, Arkansas. 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 832 px | 300 dpiLarge JPEG 3500 x 2428 px | 300 dpiBest Quality JPEG 4282 x 2970 px | 300 dpiTIFF 4282 x 2970 px | 300 dpi | 24.26 MBFree DownloadBlackboard in Ozark school, Arkansas. Sourced from the Library of Congress.More