Australian soldiers wearing gas masks, taken by an unknown photographer in about 1917, during World War One. The full caption reads: 'Gas. Australian troops with respirators on posed for the camera in the advance trench, Garter Point, 4th Division.' This photograph is from an album called 'Official Australian War Photographs', produced by the Australian War Records Section which was established by the British government in 1917. The British government in World War One recognised the importance of photographs, both as propaganda and as historical records, and tried to avoid the crude jingoism of the earlier Boer War propaganda.
© Kodak Collection / National Science & Media Museum / Science & Society Picture Library