Lewis Wickes Hine [Tool-builder bushing for engine lathe spindle, Baldwin Locomotive Works, Eddystone, Pennsylvania]
Lewis Wickes Hine [Worker operating very modern Barber-Colman automatic spooler with automatic knot-tyer, Pacific Mills, Manchester, New Hampshire]
Lewis Wickes Hine [Worker drawing end of warp through steel harness to get ends ready for weaving, Pacific Mills, Manchester, New Hampshire]