Photograph of British troops in trench wearing respirators and using Lee Enfield no 1 rifles. The caption on the reverse reads "Owing to our experience with the Huns' methods, our men in the Dardanelles were provided with respirators, and are here seen wearing them, but the Turk has proved himself, so far, a clean fighter. Fighting was not going on at the time that this photograph was taken." No 2792. From a collection of official photographs of the Dardanelles Expedition, 1915-1916. (HAMILTON 7/12/209)