Lewis Wickes Hine [Workers making matchboard on cylinder machine, American Writing Paper Co., Holyoke, Massachusetts]
Lewis Wickes Hine [Skilled worker operating damaskeening machine operation for putting finishing lines on plates and bridges, Hamilton Watch, Lancaster, Pennsylvania]
Lewis Wickes Hine [Semi-skilled worker operating wig wag machine for polishing pivots and staff shoulders, Hamilton Watch, Lancaster, Pennsylvania]
Lewis Wickes Hine [Skilled inspector using high-precision toolmaker's microscope, accurate to .0001 of an inch, to examine watches, Hamilton Watch Factory, Lancaster, Pennsylvania]
Lewis Wickes Hine [Upholsterer applying filling to channel-back chair, Tomlinson Chair Manufacturing Company, High Point, North Carolina]
Lewis Wickes Hine [Worker operating shaper, Tomlinson Chair Manufacturing Company, High Point, North Carolina]