“Mechanic in his Shrine. The heart of the Turbine Power House, Penn. R.R.” By Lewis Hine, New York City, New York, 1924 During the 1920s and early 1930s, photographer Lewis Hine made a series of “Work Portraits” that emphasized the human contribution to modern industry. The skilled workers in these photographs were pictured as active and creative craftsmen whose satisfying labor contributed to the advancement of society.