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
CPB: SSP papers on individual speech secrecy systems.
Catalogue reference: HW 9/30
What’s it about?
This record is about the CPB: SSP papers on individual speech secrecy systems. dating from 1950 Oct-1954 Jan in the series Government Communications Headquarters: Communications-Electronic Security Group,.... It is held at The National Archives, Kew.
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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)
- HW 9/30
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Date (When the record was created)
- 1950 Oct-1954 Jan
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Description (What the record is about)
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CPB: SSP papers on individual speech secrecy systems.
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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)
- L 309
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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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Closure status (Whether the record is ‘open’ (available to the public) or ‘closed’ (not available due to a legal exemption))
- 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/C3159602/
Series information
HW 9
Government Communications Headquarters: Communications-Electronic Security Group,...
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)
53 records
Within the series: HW 9
Government Communications Headquarters: Communications-Electronic Security Group,...
You are currently looking at the piece: HW 9/30
CPB: SSP papers on individual speech secrecy systems.
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