An outstanding, original, wartime poster by the Polish design duo Jan Le Witt and George Him (Lewitt-Him) for the General Post Office, 1941. The British GPO was at the forefront of commissioning modern, progressive, continental designers (like Lewitt-Him), many of whom were emigres from Nazi tyranny. This is the rare large format version of this superb poster. A higher resolution image is available for viewing on request.