This page from a wartime employee handbook illustrates the security procedures civilian workers encountered upon joining the workforce at McClellan Field, a major U.S. Army Air Forces maintenance and supply depot near Sacramento, California. Issued to orient new hires, the booklet's "Pass and Badge" section reflects the heightened security consciousness of American military installations during World War II, when thousands of civilians worked alongside service members to keep aircraft flying for the war effort. Project: 218394