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Piece
Military Cryptanalysis (German) - Early historical notes. A P Mahon's manuscript...
Catalogue reference: HW 25/18
What’s it about?
This record is about the Military Cryptanalysis (German) - Early historical notes. A P Mahon's manuscript... dating from 1920 Jan 01-1945 Dec 31 in the series Government Code and Cypher School: Cryptographic Studies. It is held at The National Archives, Kew.
Is it available online?
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Full description and record details
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Reference (The unique identifier to the record described, used to order and refer to it)
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HW 25/18
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Date (When the record was created)
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1920 Jan 01-1945 Dec 31
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Description (What the record is about)
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Military Cryptanalysis (German) - Early historical notes. A P Mahon's manuscript notebook, containing notes on the work of Bletchley Park, particularly Hut 8, on German Naval ENIGMA, probably in preparation for his Hut 8 History (see HW25/2)
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Held by (Who holds the record)
- The National Archives, Kew
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Legal status (A note as to whether the record being described is a Public Record or not)
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Public Record(s)
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Closure status (Whether the record is ‘open’ (available to the public) or ‘closed’ (not available due to a legal exemption))
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Open Document, Open Description
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Subjects (Categories and themes found in our collection (our subject list is under development, and some records may have no subjects or fewer than expected))
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- Topics
- Intelligence
- Navy
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Record URL
- https://beta.nationalarchives.gov.uk/catalogue/id/C11034956/
How to order it
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Series information
HW 25
Government Code and Cypher School: Cryptographic Studies
See the series level description for more information about this record.
Catalogue hierarchy
Over 27 million records
This record is held at The National Archives, Kew
17,110 records
Within the department: HW
Records created or inherited by Government Communications Headquarters (GCHQ)
42 records
Within the series: HW 25
Government Code and Cypher School: Cryptographic Studies
You are currently looking at the piece: HW 25/18
Military Cryptanalysis (German) - Early historical notes. A P Mahon's manuscript...
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