Messages under the sea : the romance of Cornish cable communications /
Packer, J. E.(John E.)
Cable & Wireless Porthcurno & Collections Trust.
Porthcurno Telegraph Museum.
Porthcurno : Cable and Wireless Porthcurno and Collections Trust,
c2005.
"Porthcurno Telegraph Museum" -- Cover.
Cables, Submarine
Wireless communication systems
Telecommunication