File:Machine used in Gary W. Va. mine that digs the coal and loads it on the car. With it 3 men can do the work of 50 in the old way. Yet they use boys to drive and trap. LOC nclc.01050.jpg
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![File:Machine used in Gary W. Va. mine that digs the coal and loads it on the car. With it 3 men can do the work of 50 in the old way. Yet they use boys to drive and trap. LOC nclc.01050.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/6/6d/Machine_used_in_Gary_W._Va._mine_that_digs_the_coal_and_loads_it_on_the_car._With_it_3_men_can_do_the_work_of_50_in_the_old_way._Yet_they_use_boys_to_drive_and_trap._LOC_nclc.01050.jpg/800px-thumbnail.jpg?20180731135003)
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