28th June 1938, England, An air raids precautions officer in Hackney, London fits a younger with a gas mask in a huge operation to fit everybody in the borough with a mask [Getty Images]

28th June 1938, England, An air raids precautions officer in Hackney, London fits a younger with a gas mask in a huge operation to fit everybody in the borough with a mask (Photo by Popperfoto via Getty Images/Getty Images)

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