Telegraph wire at the Greenwich works, London, 1866.

Workers in a cable factory, 1933.

Ps 'Great Eastern', 1858.

Testing recovered cable aboard 'Great Eastern', 1866.

Workmen laying telegraph cable, 1866.

Laying telephone cables, London, 5 November 1937.

Early submarine cables and grapnel, 1858-1866.

Fleeming Jenkin, British electrical engineer, 1884.

Laying cable, Port Magee, Ireland, 1866.

Photographic negative taken by John Clarke of construction work at the mouth of a tunnel,A1969.70/Box 5/Neg 1248/6

Laying a Beam, Empire State Building', New York, c 1931.

Early submarine cables and grapnel, 1858-1866.