Keywords: history of technology historyoftechnology mining smithsonian probably public domain probablypublicdomain blackandwhite monochrome outdoor vehicle train locomotive black and white SI Neg. CCC-2735A. Date: na....Dinkdy on Fish Pond Branch.From the Consolidation Coal Company collection, National Museum of American History...Credit: unknown (Smithsonian Institution) SI Neg. CCC-2735A. Date: na....Dinkdy on Fish Pond Branch.From the Consolidation Coal Company collection, National Museum of American History...Credit: unknown (Smithsonian Institution) |