This primary source comes from the Records of the War Production Board.
National Archives Identifier:
534533Full Citation: 179-WP-682; Keep Punching... in the Battle of Production; ca. 1942 - ca. 1943; War Production Board, 1942 - 1943; Records of the War Production Board, Record Group 179; National Archives at College Park, College Park, MD. [Online Version, https://www.docsteach.org/documents/document/keep-punching-in-the-battle-of-production, March 28, 2024]