'All clear for the guns', BR poster, 1940s.

'Reserve troops waiting to move up to the forward area', France, WWI, 1916.

Soldiers and welfare girls playing cards, World War Two, 1942.

'Jellallabad [sic] - Scenes in Camp', 1879.

Soldiers in a pub, Second World War, c 1939-1945.

'Dig for Victory' poster, c 1940.

Design for a helicopter and tank, c 1490s.

Female tram driver, First World War, 1916.

Bombs lighting the night sky over London, 22 March 1944.

Bomb damage to a London street, c 1943.

'No Extra Trains at Christmas', Railway Executive Committee poster, 1939-1945.

Child evacuees depart, 14 December 1939.