Series
Thomas Osborne, 1st Duke of Leeds: Papers
Catalogue reference: PRO 30/32
Date: 1661-1717
By far the greater part of this collection consists of certain official records of the administration, as Lord High Treasurer (from June 1673...
Piece
Catalogue reference: HW 23/53
This record is about the Japanese naval decrypts dating from 1943 Dec 01-1943 Dec 04 in the series Government Code and Cypher School: Naval Section: Reports of Japanese Naval Decrypts. It is held at The National Archives, Kew.
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Japanese naval decrypts
HW 23
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Japanese naval decrypts
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