Bureau of Mines -- Information Circulars (5" of material, unfoldered), 1920–1950

Bureau of Mines -- Information Circulars (5" of material, unfoldered), 1920–1950, Box: 3. J.J. Rutledge Technical Writings on Coal Mining, A&M 3312. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/164339 Accessed February 03, 2026.