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- Catalogue level
- Piece
Accessions administration: HW 42
Accessions administration: HW 42
- Held by
- The National Archives, Kew
- Date
- 2001 Jan 1 - 2002 Dec 31
- Reference
- PRO 57/15772
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- Catalogue level
- Item
Appendix I Stockholm - see HW 15/40-42 for message texts
Appendix I Stockholm - see HW 15/40-42 for message texts
- Held by
- The National Archives, Kew
- Date
- 1940-1948
- Reference
- HW 15/61/17
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- Catalogue level
- Division
General records of the Government Code and Cypher School
and senior committee HW 42; Second World War in the Far East, summary reports HW 44; Air Section HW 56; Y Board and Sigint Board
- Held by
- Date
- 1914-1979
- Reference
-
- Catalogue level
- Series
Government Code and Cypher School: Sigint Board and Related Committees and Sub-Committees:...
This series consists of the minutes, papers and correspondence of the Signals Intelligence Board and its predecessor, the Cryptography and Interception Committee, and of all their respective committees and sub-committees.
- Held by
- The National Archives, Kew
- Date
- 1924-1945
- Reference
- HW 42
-
- Catalogue level
- Piece
DSH 11 - Chinese Cyphers
DSH 11 - Chinese Cyphers
- Held by
- The National Archives, Kew
- Date
- 1942 Mar 27 - 1944 Oct 16
- Reference
- HW 53/42
-
- Catalogue level
- Piece
Y Sub-committee: minutes, special meetings and programmes. Y Sub-committee was the...
Y Sub-committee: minutes, special meetings and programmes. Y Sub-committee was the executive arm of the Coordination of Interception and Cryptography Committee. It was chaired by the Head of the Government Code and Cypher School and had as its member…
- Held by
- The National Archives, Kew
- Date
- 1933 Nov 01-1938 Oct 27
- Reference
- HW 42/3
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- Catalogue level
- Piece
Papers relating to the YC Sub-committee, which was set up to oversee the programmes...
Papers relating to the YC Sub-committee, which was set up to oversee the programmes for Y and DF stations, and the YI Sub-committee, which considered foreign telecommunications.Minutes of YC Sub-committee meetings, Oct 1938 - July 1939 YI Sub-committ…
- Held by
- The National Archives, Kew
- Date
- 1938 Oct 11-1939 Oct 24
- Reference
- HW 42/20
-
- Catalogue level
- Piece
Supreme Headquarters Allied Expeditionary Force (SHAEF) Sigint Board: minutes of...
Supreme Headquarters Allied Expeditionary Force (SHAEF) Sigint Board: minutes of first and second meetings
- Held by
- The National Archives, Kew
- Date
- 1944 May 13-1945 Feb 28
- Reference
- HW 42/19
-
- Catalogue level
- Piece
Centralised DF coordination centred on Bletchley Park, including minutes of DF Coordinating...
Centralised DF coordination centred on Bletchley Park, including minutes of DF Coordinating Party meetings
- Held by
- The National Archives, Kew
- Date
- 1942 Mar 07-1944 May 16
- Reference
- HW 42/26
-
- Catalogue level
- Piece
Minutes of VHF Sub-committee. The VHF Sub-committee was set up to coordinate investigations...
Minutes of VHF Sub-committee. The VHF Sub-committee was set up to coordinate investigations into and arrange interception of enemy signals using frequencies above 30 Megahertz. It met 3 times between Aug 1941 and Jan 1942.
- Held by
- The National Archives, Kew
- Date
- 1941 Aug 29-1942 Jan 03
- Reference
- HW 42/23
-
- Catalogue level
- Piece
Y Committee, Dec 1939 - Dec 1941 Successor to the former Y Sub-committee (and not...
Y Committee, Dec 1939 - Dec 1941 Successor to the former Y Sub-committee (and not to be confused with the Main Y Committee, which succeeded the Coordination of W/T Interception Committee and was re-named the Y Board in January 1941). Committee streng…
- Held by
- The National Archives, Kew
- Date
- 1939 Dec 28-1941 Dec 31
- Reference
- HW 42/5
-
- Catalogue level
- Piece
Technical Sub-committee of the Y Committee papers. This sub-committee, which was...
Technical Sub-committee of the Y Committee papers. This sub-committee, which was merged with the Administrative Sub-committee in August 1941 to form the AT Sub-committee, was responsible for technical matters, such as the interception of VHF communic…
- Held by
- The National Archives, Kew
- Date
- 1941 Jan 03-1941 Jun 27
- Reference
- HW 42/21
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- Catalogue level
- Piece
Decrypts of intercepted diplomatic communications. Afghanistan: 12255-12256, 12333,...
Decrypts of intercepted diplomatic communications. Afghanistan: 12255-12256, 12333, 12368, 12440. Brazil: 12235, 12331. France: 12192-12194, 12205-12209, 12225-12227, 12232, 12238, 12260-12263, 12270, 12282-12285, 12297-12299, 12311-12312, 12323-1232…
- Held by
- The National Archives, Kew
- Date
- 1923 Jan
- Reference
- HW 12/42
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- Catalogue level
- Piece
Reports in the series QT/5501 to QT/6000.
Reports in the series QT/5501 to QT/6000.
- Held by
- The National Archives
- Date
- 1942 Nov 07-1942 Nov 12
- Reference
- HW 20/42
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- Catalogue level
- Piece
Y Board, 1941 and 1942 Subjects discussed include: organisation and working of Y...
Y Board, 1941 and 1942Subjects discussed include: organisation and working of Y Services liaison with US, Russia and China proposals for reorganisation of WTI and cryptography in the Middle East Y organisation in India instructions for the handling o…
- Held by
- The National Archives, Kew
- Date
- 1941 Jan 09-1942 Dec 23
- Reference
- HW 42/9
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- Catalogue level
- Piece
Y Committee, Jan - July 1942 Subjects discussed include: the re-location of the Far...
Y Committee, Jan - July 1942Subjects discussed include: the re-location of the Far East Combined Bureau to Colombo and the setting up of the Wireless Experimental Centre, Delhi liaison with the US and with the Russians new sub-committees set up to d…
- Held by
- The National Archives, Kew
- Date
- 1942 Jan 01-1942 Jul 30
- Reference
- HW 42/6
-
- Catalogue level
- Piece
Y Committee, Jan - Oct 1943 Subjects discussed include: Mediterranean, Black Sea...
Y Committee, Jan - Oct 1943 Subjects discussed include: Mediterranean, Black Sea and Caucasus Y plan liaison with US, Russians and French Y coordination within the Empire plans for Middle East and India At the end of October 1943, the Y Board became …
- Held by
- The National Archives, Kew
- Date
- 1943 Jan 02-1943 Oct 31
- Reference
- HW 42/8
-
- Catalogue level
- Piece
Sigint Board, Oct - Dec 1943: minutes of meetings & other papers Subjects discussed...
Sigint Board, Oct - Dec 1943: minutes of meetings & other papersSubjects discussed include: Sigint Board for COSSAC (Chief of Staff to Supreme Allied Commander) - later SHAEF (Supreme HQ, Allied Expeditionary Force) the organisation of Sigint in …
- Held by
- The National Archives, Kew
- Date
- 1943 Oct 20-1943 Dec 31
- Reference
- HW 42/11
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- Catalogue level
- Piece
India, 1942 - 1945 Copies of minutes of Board and Committee meetings held in India...
India, 1942 - 1945Copies of minutes of Board and Committee meetings held in India or South East Asia Command forwarded to UK recipients: 1. Y(India) Board: Minutes of first meeting on 15 May 1942 Letter to Chairman of Y Committee in London, recounti…
- Held by
- The National Archives, Kew
- Date
- 1942 May 15-1945 May 05
- Reference
- HW 42/17
-
- Catalogue level
- Piece
Sigint Board, Jan - June 1944 - minutes of meetings and other papers Subjects discussed...
Sigint Board, Jan - June 1944 - minutes of meetings and other papersSubjects discussed include: 'Most Secret' becomes 'Top Secret' organisation of radio countermeasures in preparation for OVERLORD - radio countermeasures against Japanese proposed use…
- Held by
- The National Archives, Kew
- Date
- 1944 Jan 04-1944 Jun 30
- Reference
- HW 42/12