Please be Careful' BR poster, c 1950s. Poster produced for British Railways (BR) warning its pasengers that 'Many Avoidale Accidents are due to Careles Opening of Carriage Doors before the Train Stops'. Illustrated with man opening carriage door and a couple looking alarmed from the platform. Artwork by Fyffe. Printed by Ernest J Day & Co Ltd, London.
© NRM / Pictorial Collection / Science & Society Picture Library