Caption: Image of a bombproof signal station labeled as NUMBER 66710. The photograph was taken on May 12, 1919, and is accompanied by a description indicating its military use as a bombproof signal station. It was marked with the symbol EU.

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Size: 8428px × 5717px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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