Black Chamber cryptanalytic work sheet for solving Japanese diplomatic cipher, 1919 National Cryptologic Museum DSC07698

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Size: 1264px × 1977px
Photo credit: © Archive PL / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ancient, book, bygone, copy, cover, editorial, historic, history, illustration, news, nostalgia, nostalgic, photo, photograph, photography, space, stock, textbook, vintage