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 [Man working with very modern 50-foot electric planer for big steel electric locomotive frames, Baldwin Locomotive Works, Eddystone, Pennsylvania]
Lewis Wickes Hine [Machinist machining wheel to fit driving pin on above wheels (80 inches in diameter) on newest type of locomotive, Baldwin Locomotive Works, Eddystone, Pennsylvania]
Lewis Wickes Hine [Factory interior with small planing machine with belt drive run by steam (now out of production) that was installed about forty years ago, Baldwin Locomotive Works, Eddystone, Pennsylvania]