This primary source comes from the Records of the U.S. Food Administration.
Full Citation: Home Card: 'What You Can Do to Help Win This War'; 8/1917; No. 36 -Window Cards & Home Cards, 1917 - 1919; General Correspondence, 1917 - 1918; Records of the U.S. Food Administration, Record Group 4; National Archives at Chicago, Chicago, IL. [Online Version, https://www.docsteach.org/documents/document/home-card-you-can-help-win-this-war, May 1, 2024]