![A group of young men posed on a outside staircase, some holding containers.](images/breakerboys.jpg)
Breaker boys, Woodward Coal Mines, Kingston, Pa.
LC-D401-11590 |
![Man standing on a frozen pond, using a saw to cut into the ice at the edge.](images/iceharvest.jpg)
Ice harvesting, sawing.
LC-D4-30864 |
![Women in a factory, lined up and seated at machines.](images/factory.jpg)
Lock and drill dept., National Cash Register, Dayton, Ohio.
LC-D401-14756 |
![A man attaching a part to an automobile on an assembly line.](images/autoline.jpg)
Assembly.
LC-D420-2876 |
![A line of new railroad cars receding into the distance.](images/railcar.jpg)
New cars, Merchants Despatch Transportation Co.
LC-D4-17616 |
![A large machine and an open railroad car.](images/machine.jpg)
Hulett machine unloading ore, Pennsylvania [Railroad] dock, Buffalo, N.Y.
LC-D4-70299 |
![Color interior view of workers on a cotton gin with piles of cotton all around them.](images/cottongin.jpg)
Mississippi cotton gin at Dahomey.
LC-USZC4-6134 |
![A ship mast and a long row of wood frames stacked vertically.](images/keel.jpg)
Laying keel of no. 400, Globe Iron Works, Cleveland, Ohio.
LC-D4-12872 |