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Olga Gray and the Woolwich Arsenal Spy Ring
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Catalogue reference: HW 50/38
This record is about the Synopsis on 'Y' [Sigint] at Sea (European Naval). Notes on the establishment of sea-going... dating from 1941 Apr 04 - 1942 Jul 22 in the series Government Code and Cypher School and Government Communications Headquarters: Records.... It is held at The National Archives, Kew.
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Synopsis on 'Y' [Sigint] at Sea (European Naval). Notes on the establishment of sea-going linguist radio operators for the interception of German VHF radio telephony
HW 50
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Records created or inherited by Government Communications Headquarters (GCHQ)
Government Code and Cypher School and Government Communications Headquarters: Records...
Synopsis on 'Y' [Sigint] at Sea (European Naval). Notes on the establishment of sea-going...
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