Lewis Wickes Hine [Machinist finishing axle on large driving wheels (80 inches in diameter) on newest type of locomotive, Baldwin Locomotive Works, Eddystone, Pennsylvania]
Lewis Wickes Hine [Stationary steam engine built by W. W. Baldwin before 1830, Baldwin Locomotive Works, Eddystone, Pennsylvania]
Lewis Wickes Hine [A. Miles assembling electrically operated "very modern" milling machine, Baldwin Locomotive Works, Eddystone, Pennsylvania]
Lewis Wickes Hine [William A. Portington, 72-year-old worker, using hand-operated knitting machine 100 years old formerly used to knit hosiery, Minnesac Mills, Philadelphia]
