United States, 39.76, -98.5National Mine Service Company1974image/jp2Georgia State University Libraryhttp://rightsstatements.org/vocab/InC-EDU/1.0/SERIES IV: Coal and AppalachiaM. H. Ross PapersSouthern Labor Archiveshttps://archivesspace.library.gsu.edu/repositories/2/resources/1Coal mines and miningCoal mines and mining--Equipment and suppliesNational Mine Service CompanyContinuous mining machine tearing coal from face of coal seam with steel teeth on rotating cutter head, 1974StillImage