Keywords: history of technology historyoftechnology mining smithsonian probably public domain probablypublicdomain blackandwhite monochrome outdoor road sport vehicle train locomotive black and white SI Neg. CCC-1965. Date: 1/10/1921....204 Motors Ready for Inspection.No 204 Motors - Ready for Inspection 15 Reg..From the Consolidation Coal Company collection, National Museum of American History...Credit: unknown (Smithsonian Institution) SI Neg. CCC-1965. Date: 1/10/1921....204 Motors Ready for Inspection.No 204 Motors - Ready for Inspection 15 Reg..From the Consolidation Coal Company collection, National Museum of American History...Credit: unknown (Smithsonian Institution) |