![](http://www.alamy.com/thumbs/6/D6229E41-8ED5-4513-A945-E20865D09A9E/2JY2E45.jpg)
Sgt. C. Mcpherson And Sgt. J. Mccawley Compare Their Gas Masks With The Mask Belonging To The Chinese Soldier Who Has Used His Chinese Mask In The Gas Chamber During Chemical Warfare Classes At Kunming, China, 10 January 1943.
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Photo credit: © piemags / Alamy / Afripics
License: Licensed
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