"A Careless Word...A Needless Sinking" U.S. Merchant Marine Tanker WWII Poster
Having graduated from USMMA, this has quite a bit of meaning to me. A number of merchant seamen I sailed with in the 1970s had sailed in WWII. Go to: http://www.nicolausassociates.com/Patriotic.htm to see this poster and many others.