“THE SUBTERRANEAN LIFE IN THE BRITISH FRONT”A british soldier prepares to go underground with digin
“THE SUBTERRANEAN LIFE IN THE BRITISH FRONT”A british soldier prepares to go underground with diging and oxygen equipment. P.S.: Note the little cage in his hand, it was used to hold a bird inside of it and take it underground. If the bird died, it would mean that there was no more oxygen in the tunel. Source: “A Guerra Illustrada”/”La guerre Illustrée”, August, 1918. -- source link
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