Each week we scour the web for interesting and historic documents that catch our eye, make us think or simply make us laugh.

Found in the “Way We Worked” National Archives and Records Administration digital exhibition. Photo caption: “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 while they are doing the clean-up job” By an unknown photographer, ca. 1941–45, National Archives, Records of the Women’s Bureau (86-WWT-33-58).

This post first appeared on AHA Today.