Catalogue description Government Code and Cypher School: Diplomatic and Commercial Sections: Reports of Messages Passed on Diplomatic Channels (COM Series)

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Details of HW 32
Reference: HW 32
Title: Government Code and Cypher School: Diplomatic and Commercial Sections: Reports of Messages Passed on Diplomatic Channels (COM Series)
Description:

This series comprises messages passing between governments and their legal representatives abroad. The COM file series had the same Top Secret classification as the BJ file in which diplomatic traffic was issued, and was subject to the same conditions of circulation.

The series was anomalous as the traffic was processed in the Diplomatic Section but was passed to the Commercial Section for onward transmission because the messages were of interest to the Ministry of Economic Warfare rather than the Foreign Office.
Date: 1942-1945
Related material:

For records of the Ministry of Economic Warfare see FO 837
Former reference in its original department: COM file series
Legal status: Public Record(s)
Language: English and French
Creator:

Government Code and Cypher School, Commercial Section, 1938-1945

Government Code and Cypher School, Diplomatic Section, 1919-1946
Physical description: 61 file(s)
Access conditions: Records not yet transferred
Immediate source of acquisition:

Government Communications Headquarters
Accumulation dates: 1942 to 1945
Selection and destruction information: All surviving messages in the series have been preserved.
Accruals: Series is accruing

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