D Day monument at Bletchley Park, in the form of a punch card.

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Size: 3744px × 5616px
Location: Bletchley Park
Photo credit: © © chrisstockphotography / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: bletchley, card, cards, cipher, ciphers, code, codebreakers, codebreaking, collection, computing, cyphers, data, de-code, decode, decoding, enciphered, encode, encoding, engima, hollerith, lorenz, machine, machines, marian, park, punch, recording, records, rejewski, sorting