Lewis Wickes Hine [Walsh Holyoke Steam Boiler Works, Jolly, Inc., Church of the Precious Blood, and Holyoke Water Power Company at dusk, Holyoke, Massachusetts]
Lewis Wickes Hine [Worker stripping rubber bodies off core-bars, Paragon Rubber Company and American Character Doll, Easthampton, Massachusetts]
Lewis Wickes Hine [Skilled worker truing balance wheels by placing wheel into calipers provided with an index that shows where it is out of balance, Hamilton Watch, Lancaster, Pennsylvania]
