Receipt and distribution of Foreign Office Cyphers Political 'A' and 'B' commercial 'A' and 'B', Political 'A2' and 'B2', Starting Groups and Recyphering Tables D1 and D2, and correction to M 1921 and special reference Cypher. Destruction of Foreign Office Cypher Codes E 1919, I 1919 and N 1920 Political 'A' and Commercial 'B'. Discontinuance of the use of Foreign Office Cypher 'V' 1919

Keywords	Foreign Office Cypher Code Tehran C.G. Adam
Ministry/ Department/ Residency	Foreign and Political
Branch	Cypher Confidential
From Year / Date (YYYY-MM-DD)	1923
To Year / Date (YYYY-MM-DD)	1923
Source Organization	NA
Identifier	PR_000006079631
File No./Reference No./Sheet No./Folio No.	File No. 279-288
Location	Repository-3
Part No.	NA
File Size	80.7 MB
Pages	63
Collection	Digitized Public Records Foreign and Political
Call Number	NA
Publisher	NA
Subject	NA
Creator	NA
Accession Number	NA
Series	NA
Year of Publication	NA
Language	English
Bundle Barcode	NA
Location Code	NA
File Barcode	NA