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
Enemy exploitation of RAF low grade codes and cyphers in the Far East: miscellaneous...
Catalogue reference: HW 40/56
What’s it about?
This record is about the Enemy exploitation of RAF low grade codes and cyphers in the Far East: miscellaneous... dating from 1944 Feb 25 - 1945 Sep 05 in the series Government Code and Cypher School: Security of Allied Cyphers Section: Security Files.... It is held at The National Archives, Kew.
Is it available online?
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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 40/56
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Date (When the record was created)
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1944 Feb 25 - 1945 Sep 05
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Description (What the record is about)
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Enemy exploitation of RAF low grade codes and cyphers in the Far East: miscellaneous reports and correspondence
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Held by (Who holds the record)
- The National Archives, Kew
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Former department reference (Former identifier given by the originating creator)
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L3(O)
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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/C11217918/
How to order it
- View this record page in our current catalogue
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Series information
HW 40
Government Code and Cypher School: Security of Allied Cyphers Section: Security Files...
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)
278 records
Within the series: HW 40
Government Code and Cypher School: Security of Allied Cyphers Section: Security Files...
You are currently looking at the piece: HW 40/56
Enemy exploitation of RAF low grade codes and cyphers in the Far East: miscellaneous...
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