Five specimens showing the construction of the Atlantic Telegraph Cable, 1857

Telegraph indicator showing the arrangement of the needle and wires

One of a collection of raw and manufactured products from the Great Exhibition of 1851 - registered marine signal lamp yielding a light equal to a blue light, by E. Gilbert, Falmouth

Stereotype plate giving the figure of a Chinese vase, by P.P. Thoms, printer, Warwick Square, London, one of collection of raw and manufactured products from the Great Exhibition of 1851

Specimen of 5-wire telegraph cable in wood - one of two pieces of Cooke and Wheatstone's first working telegraph, London, 1837

One of a group of specimens of electric telegraph apparatus - a stoneware telegraph insulator with a wooden arm

One of a group of specimens of electric telegraph apparatus - a stoneware telegraph insulator, of an old form

Telegraph pole fitted with ebonite insulators

One of two pieces of submarine telegraph cable of shore end type laid in 1885 in the Persian Gulf, one piece dissected to show layers, made for the Persian Indo-European Telegraph Department, 1885

Piece of the Persian Gulf telegraph cable after 16 years submersion, 1850 - 1880

Model of Foster's patent stereo web printing and folding machine, used in newspaper offices, made in the museum workshop, scale one third, 1885

Telephone. horseshoe magnet type

Bell, part of a Wheatstone A.B.C. telegraph instrument

Morse embosser

One of a historical collection of telegraph apparatus - a very early form of Siemens A.B.C. instrument

One of a historical collection of telegraph apparatus - Bright's bell receiver with relay