"The more information you keep under your hat" Artist unknown, date unknown

Catalogue ref: INF 3/235

A Careless talk poster, illustrated with civilian and armed forces headgear, with the slogan ‘The more information you keep under your hat' (trilby hat) and the caption ‘the safer he'll be under his' (steel helmet). This slogan is less succinct, although more explicit, than the wide-ranging campaign ‘Keep it Under Your Hat' of 1940, of which this poster may have intended to be part. As with many Careless talk posters, the images focus on the head area, indicating whatever knowledge was contained in the head, it should be kept there. Aimed across the classes, the campaign needed to make everyone realise that they might know information of importance, and so could be dangerous to the nation.