Catalogue description Government Code and Cypher School: Tactical Sigint forwarded to Allied Commands: Summaries

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Details of HW 20
Reference: HW 20
Title: Government Code and Cypher School: Tactical Sigint forwarded to Allied Commands: Summaries
Description:

This series consists of intelligence reports prepared in Hut 3 at Bletchley Park, for transmission to allied commands abroad. These reports were paraphrases of the reports as sent to home establishments, to conceal that they were derived from decrypts of enemy cypher messages. Much of the series duplicates reports already released by the Ministry of Defence, but it includes reports which were previously withheld and some additional related material.
Date: 1940-1945
Related material:

Summaries of intelligence from intercepted signals sent to allied commands are in DEFE 3
Held by: The National Archives, Kew
Legal status: Public Record(s)
Language: English
Creator:

Foreign Office, Government Code and Cypher School, 1922-1946
Physical description: 546 volume(s)
Access conditions: Subject to 30 year closure unless otherwise stated
Immediate source of acquisition:

From 1998 Government Communications Headquarters
Accruals: Series is accruing

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