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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.
Piece
Miscellaneous notes and reports on German agent cypher usage
Catalogue reference: HW 19/315
What’s it about?
This record is about the Miscellaneous notes and reports on German agent cypher usage dating from 1944 Jan 12-1945 Jan 19 in the series Government Code and Cypher School: ISOS Section and ISK Section: Decrypts of German.... It is held at The National Archives, Kew.
Is it available online?
No, this record is not available online. However, you can order a copy. Other ways to view it.
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Yes, this record is held at The National Archives and is available to see in person. How to view it.
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 19/315
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Date (When the record was created)
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1944 Jan 12-1945 Jan 19
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Description (What the record is about)
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Miscellaneous notes and reports on German agent cypher usage
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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
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Record URL
- https://beta.nationalarchives.gov.uk/catalogue/id/C10869103/
How to order it
- View this record page in our current catalogue
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Series information
HW 19
Government Code and Cypher School: ISOS Section and ISK Section: Decrypts of German...
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)
392 records
Within the series: HW 19
Government Code and Cypher School: ISOS Section and ISK Section: Decrypts of German...
You are currently looking at the piece: HW 19/315
Miscellaneous notes and reports on German agent cypher usage
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