Keywords: history of technology historyoftechnology mining smithsonian probably public domain probablypublicdomain monochrome blackandwhite outdoor black and white SI Neg. CCC-1971. Date: na....No 210-11-12 Slate Larry Accident.From the Consolidation Coal Company collection, National Museum of American History...Credit: unknown (Smithsonian Institution) SI Neg. CCC-1971. Date: na....No 210-11-12 Slate Larry Accident.From the Consolidation Coal Company collection, National Museum of American History...Credit: unknown (Smithsonian Institution) |