Searching for coal by boring, Pas de Calais Coalfield, France. Changing the rods on a boring machine machine powered by a steam engine. From Underground Life or, Mines and Miners by Louis Simonin London, 1869. Wood engraving. Editorial Stock Photo - Afloimages
Searching for coal by boring, Pas de Calais Coalfield, France. Changing the rods on a boring machine machine powered by a steam engine. From Underground Life: or, Mines and Miners by Louis Simonin (London, 1869). Wood engraving.