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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
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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. |