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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
Evidence as to the Use of Sigint in certain Naval Operations. 'Studies made immediately...
Catalogue reference: HW 50/95
What’s it about?
This record is about the Evidence as to the Use of Sigint in certain Naval Operations. 'Studies made immediately... dating from 1941 Mar 01 - 1946 Mar 05 in the series Government Code and Cypher School and Government Communications Headquarters: Records.... 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 50/95
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Date (When the record was created)
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1941 Mar 01 - 1946 Mar 05
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Description (What the record is about)
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Evidence as to the Use of Sigint in certain Naval Operations. 'Studies made immediately after the war as to the use, excessive use, incomplete use, non-use or misuse of Special Intelligence in connection with certain naval operations.' These include the Battle of Matapan, the 'Tirpitz' operation of March 1942, the German raid on Granville March 1945, the German raid against Leros November 1943, the St Nazaire Raid March 1942
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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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Access conditions (Information on conditions that restrict or affect access to the record)
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Retained Until 2004
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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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Record URL
- https://beta.nationalarchives.gov.uk/catalogue/id/C11205579/
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Series information
HW 50
Government Code and Cypher School and Government Communications Headquarters: Records...
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)
149 records
Within the series: HW 50
Government Code and Cypher School and Government Communications Headquarters: Records...
You are currently looking at the piece: HW 50/95
Evidence as to the Use of Sigint in certain Naval Operations. 'Studies made immediately...
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