https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/12337203Edit ImageSaveSaveEditCropCustom TextPittsburgh, Pennsylvania (vicinity). Montour no. 4 mine of the Pittsburgh Coal Company. Lunch time in the machine shop. 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 1148 x 1200 px | 300 dpiLarge JPEG 3347 x 3500 px | 300 dpiBest Quality JPEG 4774 x 4992 px | 300 dpiTIFF 4774 x 4992 px | 300 dpi | 45.48 MBFree DownloadPittsburgh, Pennsylvania (vicinity). Montour no. 4 mine of the Pittsburgh Coal Company. Lunch time in the machine shop. Sourced from the Library of Congress.More