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Olga Gray and the Woolwich Arsenal Spy Ring
Series
Catalogue reference: HW 70
HW 70
This series contains intecepted and decyphered Bulgarian messages relating to the navigation of the River Danube and Bulgarian naval operations in the Aegean Sea.
HW 70
1944-1945
This series contains intecepted and decyphered Bulgarian messages relating to the navigation of the River Danube and Bulgarian naval operations in the Aegean Sea.
Public Record(s)
English
1 file(s)
Open
in 2004 Government Communications Headquarters
No further accruals are expected.
Records selected under acquisition policy 2.2.1.3, documenting the use made of Bulgarian Danube river navigation and port communications intercepted by GC&CS during the Second World War to provide intelligence. All surviving records selected.
Records created or inherited by Government Communications Headquarters (GCHQ)
Government Code and Cypher School: Bulgarian River Navigation and Port Authorities Messages
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