Women in industry. Gas mask production. The finished gas mask face pieces in the foreground were just flaps of rubber without eye pieces, outlet valves, straps, tabs, and other accessories when they started on the long moving belt at the far end of the line. By the time they've reached this end, however, a hundred pairs of hands have worked on them, machining, clamping, riveting, testing, and inspecting each one until the completed masks are packaged in the final stages of production. All this activity takes place in a Midwest vacuum cleaner plant which has been converted to war work. Eureka Vacuum, Detroit, Michigan. Sourced from the Library of Congress.