Poster, Railway Executive Committee, Stay Put this Summer, about 1941. Coloured lithograph with two photographs, one showing sea shells, the other artillery shells being loaded onto a London & North Eastern Railway 13-ton wagon. Text superimposed on the illustrations reads "Not these shells....but THESE". Text below reads "In peacetime the Railways welcome holiday crowds. This summer holidays should be spent at home. Railway Executive Committee". Text in bottom margin reads "No. 558. Printed in England by McCorquoadale & Co. Ltd., London".