Orig. WW II Hitler Tojo Bookmark Win War Prevent Fires

This original 1940s WW II cardboard bookmark warns Americans to 'Prevent Forest Fires...Our Carelessness...Their Secret Weapon'. Caricatures of menacing Hitler and Tojo illustrate the bookmark. The back text explains how smoke interferes with the training of pilots, invites attacks by enemy subs and helps hide them from patrols. Bookmark measures 2 1/2 by 7 inches. Issued by the Dept. of Agriculture - Forest Service. Excellent condition.