This primary source comes from the Records of the Office of War Information.
National Archives Identifier:
535636Full Citation: Cartoon 208-COM-95; 'Beware of the Leak in the Dam!!'; 1943; Artworks and Mockups for Cartoons Promoting the War Effort and Original Sketches by Charles Alston, ca. 1942 - ca. 1945; Records of the Office of War Information, Record Group 208; National Archives at College Park, College Park, MD. [Online Version, https://www.docsteach.org/documents/document/beware-leak-dam, May 12, 2024]