INF3 263 Anti rumour and careless talk Work hard to win the battle of the Atlantic but don't overwork your tongue

INF3 263 Anti rumour and careless talk Work hard to win the battle of the Atlantic but don't overwork your tongue

English: Work hard to win the battle of the Atlantic - but don't overwork your tongue. Never mention sailing dates, cargoes or destinations to anybody
Date: 1939-46
Artist: Unknown