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Letters from the curator of St Vincent Botanic Gardens
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Catalogue reference: HW 3/19
This record is about the Clarke's work on Italian cypher systems in GCCS, including actual codes and decrypts;... dating from 1937-1945 in the series Government Code and Cypher School and predecessors: Personal Papers, Unofficial Histories,.... It is held at The National Archives, Kew.
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Clarke's work on Italian cypher systems in GCCS, including actual codes and decrypts; report of 1 Aug 1941 from Lt Cdr Murray of the Middle East Section in Alexandria on work done there on Italian submarine messages Aug 1940-Apr1941
HW 3
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Clarke's work on Italian cypher systems in GCCS, including actual codes and decrypts;...
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