Telex directory.
Great Britain.Post Office.
British Telecom.
London : Post Office,
1972-1991.
Description based on: Oct. 1972.
Later issues have title : Telex directory : United Kingdom.
Some issues have cover title : Telex : United Kingdom directory.
First issued by the Post Office ; later issued by Post Office Telecommunications ; latest volumes issued by British Telecom.
Continues : United Kingdom telex directory.
Continues by : The telex book.
Teletype
Telecommunication
United Kingdom telex directory
Telex book