Receipt of copies No.47 and 48 of Colonial Office Cypher and Decypher C.O.S. Destruction of copies nos.47 and 48 of Colonial Office Cypher and Decyphar Co.4. Releition of Cypher C.O.3 for an in definite period as a lower grade Cypher

Keywords London
R.A. Hill
Ministry/ Department/ Residency Foreign and Political
Branch Central Cypher Bureau
From Year / Date
(YYYY-MM-DD)
1933
To Year / Date
(YYYY-MM-DD)
1933
Identifier PR_000004051022
File No./Reference No./Sheet No./Folio No. 17
Location Repository-3
File Size 17.8 MB
Pages 15
Collection Digitized Public Records
Foreign and Political
Language English
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