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Olga Gray and the Woolwich Arsenal Spy Ring
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Catalogue reference: HW 61/23
This record is about the Progress of the Y plan for signals intelligence in the Mediterranean area dating from 1942 Dec 22 - 1943 Aug 14 in the series Government Code and Cypher School: Records relating to Commonwealth and Allied Signals.... It is held at The National Archives, Kew.
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Progress of the Y plan for signals intelligence in the Mediterranean area
HW 61
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Progress of the Y plan for signals intelligence in the Mediterranean area
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