Results

Newspaper cutting on the Preece cable

Newspaper cutting on ocean telephony and Preece's system of paper insulation

Newspaper cutting of use of paper insulation for submarine cables and experimental letter-box indicators

W T Glover and Company Ltd: Catalogue

Cable Makers' Association: 'Paper Insulated Power Cables'

BICC Ltd:'Paper insulated cables'

Pirelli-General Cable Works Ltd: 'Paper insulated cables 660 volts - 33,000 volts'

Pirelli-General Cable Works Ltd: 'Power cables Paper insulated Lead sheathed 1100 - 33000 volts'

'Developments at Europe's Largest Paper Mill'

Morse paper roll

Als George Biddell Airy to Francis Ronalds

Als T A Malone to Francis Ronalds

Als T A Malone to Francis Ronalds

Als T A Malone to Francis Ronalds

Als Henry Donkin to Francis Ronalds