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.
Series
Government Code and Cypher School: Weekly Reports
Catalogue reference: HW 77
What's it about?
HW 77
Reports made on a weekly basis of the activities of the following Huts at the Government Code and Cypher School at Bletchley Park: Hut 3 - This hut housed the main reporting section, they translated and compiled the intelligence reports. Hut 6 -...
Full description and record details
-
Reference (The unique identifier to the record described, used to order and refer to it)
- HW 77
-
Title (The name of the record)
- Government Code and Cypher School: Weekly Reports
-
Date (When the record was created)
- 1941-1945
-
Description (What the record is about)
-
Reports made on a weekly basis of the activities of the following Huts at the Government Code and Cypher School at Bletchley Park:
- Hut 3 - This hut housed the main reporting section, they translated and compiled the intelligence reports.
- Hut 6 - This Hut was the one housing the Enigma processing machinery for German Army and Air Force messages, which were then passed to Hut 3 for translation and reporting.
- Hut 8 - This Hut was the naval equivalent of Hut 6, and processed Enigma messages produced by the German Navy, which were passed to Hut 4 for translation and reporting.
- Block C - Hollerith Machine Tabulating Section under Fredric Freeborn (moved from Hut 7).
- Naval Section - passed intelligence and traffic analysis to the Admiralty.
- Cryptographic Co-ordination and Records Section.
-
Related material (A cross-reference to other related records)
-
Other weekly reports are in HW 56 (Air Section) and HW 78 (Research Section): HW 56 HW 78
-
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)
-
Language (The language of the record)
- English
-
Creator(s) (The creator of the record)
- Government Code and Cypher School, 1919-1946
-
Physical description (The amount and form of the record)
- 20 volume(s)
-
Access conditions (Information on conditions that restrict or affect access to the record)
- Open
-
Immediate source of acquisition (When and where the record was acquired from)
-
from 2007 Government Communications Headquarters
-
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))
-
Accruals (Indicates whether the archive expects to receive further records in future)
- No further accruals expected.
-
Selection and destruction information (Information about how the record was selected for archiving)
- Records selected under Acquisition criteria 3.1.2 (External Relations and Defence).
-
Record URL
- https://beta.nationalarchives.gov.uk/catalogue/id/C16517/
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)
You are currently looking at the series: HW 77
Government Code and Cypher School: Weekly Reports
You may be interested in
-
-
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. -
The story of
Anthony Blunt's confession
Security Service files paint a vivid picture of what happened when Anthony Blunt – then employed in the royal household – admitted spying for the Soviet Union.
Related records
Records that share similar topics with this record.