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.
Piece
Correspondence passing between Service Ministries and overseas commands via Bletchley...
Catalogue reference: HW 20/515
What’s it about?
This record is about the Correspondence passing between Service Ministries and overseas commands via Bletchley... dating from 1944 Jul 21-1944 Oct 19 in the series Government Code and Cypher School: Tactical Sigint forwarded to Allied Commands:.... It is held at The National Archives.
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 20/515
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Date (When the record was created)
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1944 Jul 21-1944 Oct 19
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Description (What the record is about)
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Correspondence passing between Service Ministries and overseas commands via Bletchley Park, relating to intelligence reports published by Bletchley Park and to Allied Sigint organisation, policy and procedure: Messages passing between Service Ministries and authorities overseas via Bletchley Park. Signals passed from Ministries to Washington via GC & CS containing appreciations on the German Air Force based on Sigint
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Held by (Who holds the record)
- The National Archives
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Former department reference (Former identifier given by the originating creator)
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SUNSET 632-720
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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/C10924874/
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- View this record page in our current catalogue
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Series information
HW 20
Government Code and Cypher School: Tactical Sigint forwarded to Allied Commands:...
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
17,110 records
Within the department: HW
Records created or inherited by Government Communications Headquarters (GCHQ)
547 records
Within the series: HW 20
Government Code and Cypher School: Tactical Sigint forwarded to Allied Commands:...
You are currently looking at the piece: HW 20/515
Correspondence passing between Service Ministries and overseas commands via Bletchley...
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