Crosley table telephone, 1879.

Bell's centennial telephone transmitter, 1876.

New Year's Greeting By Telephone, 1882.

'Loading the Travelling Post Office', GPO poster, c 1950.

Public telephone box, February 1966.

Great Yarmouth - Fish Wharf Post Office - 1937

'A 'Mud Hall' Prison, where British Officer Prisoners were kept, South Africa', 1900.

National Telephone Company directory, 1898-1899.

Acoustically coupled modem, 1980s.

Acoustically coupled modem, 1980s.

Euston Station - Loading the Travelling Post Office

Gower-Bell telephone transmitter, 1881.