Handbills advertising public viewing of the GWR telegraphs, c 1846.

M2 'Pocket Phone', by Excell Communications

Mobile Phone Sony CM-H333

Franz Hanfstang.

Portable British Typex machine, c 1930s.

A set total panel from the 'Colossus' computer, Bletchley Park, 1943.

Electric and International Telegraph Company office, London, 1859.

Fire Brigade lookout with speaking tube, 1887.

Charles Babbage, British mathematician and computing pioneer, 1841.

Gower-Bell telephone transmitter, 1881.

Mobile Phone Motorola flip phone

Mobile Phone Motorola flip phone.