War Production Board (WOB) poster. Poster distributed to war plants, designed by the Office of War Information (OWI) from a photograph by Valentino Sarra. The original comes in three sizes: 7 1/8 inches by 10 inches, 14 1/4 inches by 20 inches, and 28 1/2 by 40 inches. Colors: yellow and black on white. Copies may be obtained from Central Distribution Service, Office for Emergency Management (OEM), 1509 14th Street, N.W., Washington, D.C.