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
Closure of signals intercept and direction finding sites supporting Room 40
Catalogue reference: HW 3/10
What’s it about?
This record is about the Closure of signals intercept and direction finding sites supporting Room 40 dating from 1918-1919 in the series Government Code and Cypher School and predecessors: Personal Papers, Unofficial Histories,.... 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.
Can I see it in person?
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
-
Reference (The unique identifier to the record described, used to order and refer to it)
-
HW 3/10
-
Date (When the record was created)
-
1918-1919
-
Description (What the record is about)
-
Closure of signals intercept and direction finding sites supporting Room 40
-
Held by (Who holds the record)
- The National Archives, Kew
-
Legal status (A note as to whether the record being described is a Public Record or not)
-
Public Record(s)
-
Closure status (Whether the record is ‘open’ (available to the public) or ‘closed’ (not available due to a legal exemption))
-
Open Document, Open Description
-
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))
-
Record URL
- https://beta.nationalarchives.gov.uk/catalogue/id/C2228118/
How to order it
- View this record page in our current catalogue
- Check viewing and downloading options
- Select an option and follow instructions
Series information
HW 3
Government Code and Cypher School and predecessors: Personal Papers, Unofficial Histories,...
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)
195 records
Within the series: HW 3
Government Code and Cypher School and predecessors: Personal Papers, Unofficial Histories,...
You are currently looking at the piece: HW 3/10
Closure of signals intercept and direction finding sites supporting Room 40
You may be interested in
-
-
Record revealed
The 1951 Refugee Convention
The 1951 Refugee Convention defined international obligations to refugees, but also exposed global tensions in a context of decolonisation and ongoing conflict. -
Focus on
The Spycatcher affair
The book Spycatcher sparked one of the most controversial courtroom battles of the 1980s, bringing questions around state secrecy to a global audience.
Related records
Records that share similar topics with this record.