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A Hell 54 cipher machine on display at Bletchley Park in the Enigma and Friends exhibit prepared by John Alexander and David White.
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This work has been released into the public domain by its author, Matt Crypto. This applies worldwide. In some countries this may not be legally possible; if so: |
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I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:08, 16 November 2005 | | 1,416 × 1,743 (495 KB) | Matt Crypto | A Hell 54 cipher machine on display at Bletchley Park in the ''Enigma and Friends'' exhibit prepared by John Alexander and David White. {{PD-user|Matt Crypto}} {{PD-self}} Category:Cryptography |
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