SHORT OVERVIEW OF THE CTO
APPARATUS - Used within the CTO
BEAM RADIO - The Empire radio Service
CLOSURE OF THE CTO - Article
DESCRIPTIVE ARTICLE - 1874 - CTO
DESCRIPTIVE ARTICLE
- 1891 - CTO - An in depth description of the CTO by "The Engineer"
Magazine
DESCRIPTIVE ARTICLE - 1937 - CTO
DESCRIPTIVE ARTICLE - 1956
- Telegraphy history
DEVELOPMENT OF TELEGRAPH SWITCHING IN THE UK
- History from 1971 to 1944
FLOOR PLAN WITH PNEUMATIC TUBE OVERLAY - 1921
HISTORY OF TELEGRAPH IN THE UK - An
article from 1956
INLAND TELEGRAM RATES - 1870 to 1982 -
Includes rules and services
PERFORATORS
PHONOGRAMS - Basic description and types
of Switchboard
PHONOGRAMS - Pictures of the working
areas within the CTO
PHONOGRAM AND TELEPHONE-TELEGRAM WORKING -
An article from 1937
PHOTO ALBUM - Pictures of the CTO in 1922
PICTURES - Different areas and departments
within the CTO (1912)
PICTURES - Different areas and departments
within the CTO (1913 onwards)
PICTURE TELEGRAPHY - Pictures of
equipment within the CTO
PICTURE TELEGRAPHY
- How to send pictures by wire - 1935
POSTERS - Used by the GPO to advertise the
Telegram service
PNEUMATIC TUBES - All about pneumatic
tubes
PNEUMATIC TUBES - Pictures of
tubes in the CTO
PNEUMATIC TUBE
MAP - Tubes from the CTO to local Post Offices in the City of London
(undated|)
RAILEX
SHORT
HISTORY OF THE TELEGRAPH
SWITCHBOARDS, TELEPRINTER
TELEGRAPH ANCILLARY - Used with
early Teleprinters
TELEGRAPH
MACHINES - Used by the CTO
TELEGRAPH
TRAINING - London (1937)
TELEGRAMS - How the system worked
TELEGRAM
CONVEYORS - Article
TELEGRAM DELIVERY - Telegram
messenger boys
etc
TELEGRAM FORMS
TELEPRINTER INTRODUCTION - A
short history
TELEPRINTERS - GPO machines
TELEX - Introduction to the UK in 1932
TIME - Overview and distribution of GMT
