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Credit
Scrap-book by Captain G.H. Colt, RAMC, re development of the joined-pole trench-stretcher, including correspondence, 1915, with Captain D'Arcy Power and with Captain J. Ellis Milne, re the development of a stretcher for use in the trenches on the Western Front. Attribution-NonCommercial 4.0 International (CC BY-NC 4.0). Source: Wellcome Collection.