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Results
-
- Catalogue level
- Piece
Italian naval messages
Italian naval messages
- Held by
- The National Archives, Kew
- Date
- 1939 Mar 14-1939 Apr 20
- Reference
- HW 18/48
-
- Catalogue level
- Piece
Salaries of GCCS telegraphists
Salaries of GCCS telegraphists
- Held by
- The National Archives, Kew
- Date
- 1922
- Reference
- HW 3/48
-
- Catalogue level
- Piece
Fire prevention at GC&CS
Fire prevention at GC&CS
- Held by
- The National Archives, Kew
- Date
- 1944 Jan 01 - 1945 Jul 23
- Reference
- HW 64/48
-
- Catalogue level
- Piece
Enemy exploitation of British Army air support codes and cyphers: miscellaneous reports...
Enemy exploitation of British Army air support codes and cyphers: miscellaneous reports and correspondence
- Held by
- The National Archives, Kew
- Date
- 1943 Oct 04 - 1946 Nov 12
- Reference
- HW 40/48
-
- Catalogue level
- Piece
Intelligence reports and correspondence concerning German preparations for the invasion...
Intelligence reports and correspondence concerning German preparations for the invasion of Britain.18/10/1940 To D.D.I.C Admiralty from Lt Cdr. Saunders: "Source CX/JQ/has had instructions always to refer to this operation as 'SMITH'". 21/10/1940 'Th…
- Held by
- The National Archives, Kew
- Date
- 1940 May 17-1941 Mar 04
- Reference
- HW 48/1
-
- Catalogue level
- Piece
"Raiders" by Charles Morgan May 1944 Havoc on the trade routes caused by German warships...
"Raiders" by Charles Morgan May 1944Havoc on the trade routes caused by German warships Graf Spee, Deutschland, Scharnhorst, Gneisnau and numerous merchant raiders; difficulties in detection and lessons to be learned.
- Held by
- The National Archives, Kew
- Date
- 1939 Aug 05-1944 May 03
- Reference
- HW 8/48
-
- Catalogue level
- Piece
Commercial messages passed over diplomatic channels
Commercial messages passed over diplomatic channels
- Held by
- Creating government department or its successor
- Date
- 1945 Nov 01-1945 Nov 30
- Reference
- HW 32/48
-
- Catalogue level
- Piece
Notes on numbers: transport units and aircraft works numbers
Notes on numbers: transport units and aircraft works numbers
- Held by
- The National Archives, Kew
- Date
- 1943 Feb 28
- Reference
- HW 21/48
-
- Catalogue level
- Piece
Japanese consul-general, Calcutta: visit to Berlin by Sarat Chandra Bose, Indian...
Japanese consul-general, Calcutta: visit to Berlin by Sarat Chandra Bose, Indian communist
- Held by
- The National Archives, Kew
- Date
- 1941 Sept 5
- Reference
- HW 1/48
-
- Catalogue level
- Piece
Decrypts of intercepted diplomatic communications. Afghanistan: 13672, 13806, 13884....
Decrypts of intercepted diplomatic communications. Afghanistan: 13672, 13806, 13884. France: 13660, 13673, 13679-13681, 13696-13697, 13704-13709, 13716-13717, 13722-13724, 13743-13746, 13755, 13764, 13773, 13784, 13825, 13852, 13863-13865, 13868, 138…
- Held by
- The National Archives, Kew
- Date
- 1923 July
- Reference
- HW 12/48
-
- Catalogue level
- Piece
Signals concerning Hollerith machinery
Signals concerning Hollerith machinery
- Held by
- The National Archives, Kew
- Date
- 1940 Dec 23 - 1944 Feb 05
- Reference
- HW 51/48
-
- Catalogue level
- Piece
Reports of Japanese naval air decrypts and messages
Reports of Japanese naval air decrypts and messages
- Held by
- The National Archives, Kew
- Date
- 1945 Jul 01-1945 Oct 01
- Reference
- HW 27/48
-
- Catalogue level
- Piece
Reports of Japanese army air decrypts with subject headers
Reports of Japanese army air decrypts with subject headers
- Held by
- The National Archives, Kew
- Date
- 1944 Sep 01-1944 Nov 10
- Reference
- HW 28/48
-
- Catalogue level
- Piece
Reports teleprinted from Malta to the Air Ministry and passed to the Government Code...
Reports teleprinted from Malta to the Air Ministry and passed to the Government Code and Cypher school giving details of enemy air activity and the results of British air operations
- Held by
- The National Archives, Kew
- Date
- 1943 Apr 01-1943 Apr 30
- Reference
- HW 41/48
-
- Catalogue level
- Piece
GRU (Soviet Intelligence) Military Attaché Traffic: Moscow with New York, USA. (Described...
GRU (Soviet Intelligence) Military Attaché Traffic: Moscow with New York, USA. (Described at item level)
- Held by
- The National Archives, Kew
- Date
- 1941 Mar 29-1943 Sept 28
- Reference
- HW 15/48
-
- Catalogue level
- Piece
Japanese naval decrypts
Japanese naval decrypts
- Held by
- The National Archives, Kew
- Date
- 1943 Nov 19-1943 Nov 20
- Reference
- HW 23/48
-
- Catalogue level
- Piece
Verbatim German language message texts in GP Roulette Code
Verbatim German language message texts in GP Roulette Code
- Held by
- The National Archives, Kew
- Date
- 1944 Apr-Nov
- Reference
- HW 16/48
-
- Catalogue level
- Piece
German section: reports of German army and air force high grade machine decrypts
German section: reports of German army and air force high grade machine decrypts
- Held by
- The National Archives, Kew
- Date
- Dec 23 1941-Dec 26 1941
- Reference
- HW 5/48
-
- Catalogue level
- Item
San Francisco: Departure of "PRIVATE".
San Francisco: Departure of "PRIVATE".
- Held by
- The National Archives, Kew
- Date
- 1944 Apr 30
- Reference
- HW 15/30/48
-
- Catalogue level
- Item
Stockholm; "ULRIK" reports naval and military intelligence from Germany and Norway.
Stockholm; "ULRIK" reports naval and military intelligence from Germany and Norway.
- Held by
- The National Archives, Kew
- Date
- 1943 Nov 21
- Reference
- HW 15/13/48