Chicago: National Safety Council, (n. d.). Single sheet, printed recto only. 12" x 8-1/4". Now housed in an archival mylar sleeve. Apparently left side trimmed ~ 1cm, affecting artist name, otherwise VG. Item #47755
Scarce iteration of this oft used phrase... a cursory search of the internet found none with this image of a German U-Boat sinking a freightor.