Soldiers in Ypres during World War One using early gas masks, which were pads of cotton wool soaked in common washing soda

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Soldiers in Ypres during World War One using early gas masks, which were pads of cotton wool soaked in a solution of common washing soda. From The Story of 25 Eventful Years in Pictures published 1935

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Size: 4603px × 3071px
Photo credit: © Hilary Morgan / Alamy / Afripics
License: Licensed
Model Released: No

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