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Molten zinc flowing from a smelting furnace (1)

A stream of molten zinc flows from the furnace at a large smelting operation at the Eagle-Picher plant near Cardin, Oklahoma. (Source: Photograph by Fritz Henle [1909-1993], January 1943. U.S. Office of War Information. Courtesy of the U.S. Library of Congress, Washington, D.C.)