Crystal Palace First World War exhibition of June 1920 showing display case with model of Royal Naval Medical Corps ambulance showing stretchers within. Glass negative, 1920.

One of a series of glass negatives collected by Surgeon Commander Montague Henry Knapp, Hon. Director of the Naval Medical Section of the Imperial War Museum which were used in the Crystal Palace exhibition. Correspondence in the Wellcome Archives indicates that Knapp (as Hon. Director and organiser for the IWM) was involved in the transfer of surplus naval and military medical material from the Imperial War Museum to the Wellcome Historical Medical Museum, in setting up exhibits, and in acquiring other materials for the Wellcome collections. Material specifically relating to Knapp's activities in setting up the Naval Warfare Section in the Imperial War Museum have been transferred to the IWM.