Focus on
Olga Gray and the Woolwich Arsenal Spy Ring
In 1938, thanks to years of work by a remarkable female agent, MI5 ensured a package of British defence plans stayed secret.
Series
Government Code and Cypher School: Cypher Messages of Allies
Catalogue reference: HW 74
What's it about?
HW 74
This series contains intercepted cypher messages of the Free French, Belgian, Dutch and Polish forces, mostly related to intelligence matters. There are also a small number of Brazilian messages.
Full description and record details
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Reference (The unique identifier to the record described, used to order and refer to it)
- HW 74
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Title (The name of the record)
- Government Code and Cypher School: Cypher Messages of Allies
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Date (When the record was created)
- 1942-1945
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Description (What the record is about)
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This series contains intercepted cypher messages of the Free French, Belgian, Dutch and Polish forces, mostly related to intelligence matters. There are also a small number of Brazilian messages.
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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)
- Public Record(s)
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Language (The language of the record)
- English and French
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Creator(s) (The creator of the record)
- Government Code and Cypher School, 1919-1946
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Physical description (The amount and form of the record)
- 17 files and volumes
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Access conditions (Information on conditions that restrict or affect access to the record)
- Open
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Immediate source of acquisition (When and where the record was acquired from)
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From 2004 Government Communications Headquarters
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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
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Accruals (Indicates whether the archive expects to receive further records in future)
- Series is accruing
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Selection and destruction information (Information about how the record was selected for archiving)
- Records selected under acquisition policy criterion 2.2.1.3, documenting GC&CS interest in allied organisations' and nations' cypher communications during the Second World War. All surviving intercepted messages selected.
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Record URL
- https://beta.nationalarchives.gov.uk/catalogue/id/C16259/
Catalogue hierarchy
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Government Code and Cypher School: Cypher Messages of Allies
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