Focus on
Olga Gray and the Woolwich Arsenal Spy Ring
Piece
Catalogue reference: HW 50/73
This record is about the Japanese Naval Cyphers and Ransuuban. Historical notes on the introduction by the... dating from 1944 Nov 01 - 1945 Aug 05 in the series Government Code and Cypher School and Government Communications Headquarters: Records.... It is held at The National Archives, Kew.
No, this record is not available online. However, you can order a copy. Other ways to view it.
Yes, this record is held at The National Archives and is available to see in person. How to view it.
HW 50/73
1944 Nov 01 - 1945 Aug 05
Japanese Naval Cyphers and Ransuuban. Historical notes on the introduction by the Japanese Navy of a new regionally allocated strip key cypher (Ransuuban)
Public Record(s)
Retained Until 2004
Open Document, Open Description
HW 50
See the series level description for more information about this record.
Records created or inherited by Government Communications Headquarters (GCHQ)
Government Code and Cypher School and Government Communications Headquarters: Records...
Japanese Naval Cyphers and Ransuuban. Historical notes on the introduction by the...
Focus on
Focus on
Record revealed
Records that share similar topics with this record.