Editorial use only Women working at a factory during the Second World War. Workers punching their time cards at the clocking in and out device at the SKF (Svenska Kullagerfabriken) roller bearing factory in Philadelphia, Pennsylvania, USA. During the war, women worked in factories in roles usually occupied by men. Photographed in spring of 1942 or 1943 by US photographer Marjory Collins (1912-1985). This photograph is part of the Farm Security Administration wartime photograph collection.