Like girls from Mars are these “top women” at U.S. Steel’s Gary, Indiana, Works. Their job is to clean up at regular intervals around the tops of twelve blast furnaces. As a safety precaution, the girls wear oxygen masks., 1940 - 1945source: U.S. National Archives

Like girls from Mars are these “top women” at U.S. Steel’s Gary, Indiana, Works. Their job is to clean up at regular intervals around the tops of twelve blast furnaces. As a safety precaution, the girls wear oxygen masks., 1940 - 1945

source: U.S. National Archives