Catalogue description Room 40 and successors: World War I Official Histories

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Details of HW 7
Reference: HW 7
Title: Room 40 and successors: World War I Official Histories

Official histories of the First World War from the viewpoint of the various signals intelligence organisations written by Senior Government Code and Cypher School members of staff. The series also includes some semi-official historical papers relating to specific incidents during the war (such as the sinking of the Hampshire and the battle of Jutland) and files of decrypts of intercepted enemy communications.

Date: 1914-1923
Held by: The National Archives, Kew
Legal status: Public Record(s)
Language: English

Room 40, 1914-1917

Physical description: 35 files and volumes
Access conditions: Open
Immediate source of acquisition:

From 1995 Government Communications Headquarters

Accruals: Series is accruing

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