'Be like Dad, keep Mum', c 1940s.

'Be like Dad, keep Mum', c 1940s.
4 0 c m
actual image size: 31cm x 32cm


Propaganda sign encouraging people not to talk freely during wartime. The slogan uses a play on words: keeping mum means to be silent. The government was concerned that enemy spies might pick up useful information by listening to careless conversations.

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© Daily Herald Archive / National Science & Media Museum / Science & Society Picture Library

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