https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12337227Edit ImageSaveSaveEditCropCustom TextPittsburgh, Pennsylvania (vicinity). Montour no. 4 mine of the Pittsburgh Coal Company. Section foreman and assistant mine superintendent checking off the days of work. 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 1169 x 1200 px | 300 dpiLarge JPEG 3409 x 3500 px | 300 dpiBest Quality JPEG 4777 x 4905 px | 300 dpiTIFF 4777 x 4905 px | 300 dpi | 44.72 MBFree DownloadPittsburgh, Pennsylvania (vicinity). Montour no. 4 mine of the Pittsburgh Coal Company. Section foreman and assistant mine superintendent checking off the days of work. Sourced from the Library of Congress.More