1946 ARC Identifier 12505 / Local Identifier 70.218. This documentary film starts with the history of the steelmaking process, explaining the operation of the blast furnace and the open hearth furnace. It goes on to cover the mining of ore and limestone, transportation and coking of coal, open hearth and rolling mill operations, and plating and finishing. In addition, it also illustrates many of the applications of steel mill products. The film is partly animated. Department of the Interior. Bureau of Mines. Pittsburgh Experiment Station. (1934 - 01/19/1975)