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Series

Government Code and Cypher School and predecessors: Personal Papers, Unofficial Histories,...

Catalogue reference: HW 3

What's it about?

HW 3

This series contains correspondence, working papers and initial drafts of both official and unofficial histories of British signals intelligence (sigint).The records focus on prominent individuals and events, such as the deciphering of the...

Full description and record details

Reference

HW 3

Title
Government Code and Cypher School and predecessors: Personal Papers, Unofficial Histories, Foreign Office X Files and Miscellaneous Records
Date

1914-1945

Description

This series contains correspondence, working papers and initial drafts of both official and unofficial histories of British signals intelligence (sigint).

The records focus on prominent individuals and events, such as the deciphering of the Zimmerman telegram of January 1917 which was instrumental in persuading the United States of America to enter the First World War, and the transfer of the Metropolitan Police signals intelligence unit to Government Code and Cypher School control. The series includes a number of Foreign Office files concerning the transfer of the School to its control with details of its administrative history, and papers of WF Clarke, head of the Naval Section of the School in the inter-war years.

Held by
The National Archives, Kew
Legal status

Public Record(s)

Language

English

Creator(s)
  • Admiralty, Government Code and Cypher School, 1919-1922
  • Foreign Office, Government Code and Cypher School, 1922-1946
Physical description

188 files and volumes

Access conditions

Open

Immediate source of acquisition

From 1995 Government Communications Headquarters

Subjects
Topics
International
Conflict
Intelligence
Navy
Americas
Communications
Operations, battles and campaigns
Personal and family papers
Record URL
https://beta.nationalarchives.gov.uk/catalogue/id/C9282/

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 3

Government Code and Cypher School and predecessors: Personal Papers, Unofficial Histories, Foreign Office X Files and Miscellaneous Records

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