NATIONAL TELEPHONE COMPANY
BATTERY INTERCOMMUNICATION TELEPHONES
Pattern No. B475
Comprises - Hand Combination Transmitter and Receiver with Double Contact Key, Cord, Fixed Cradle, Induction Coil, Bell, Push Button, Line Selector and Wall Rosette and Cord.
5, 10, 15, 20, 25 & 30 line models.
Was B83 in the 1903 Catalogue.
Last revised: July 07, 2020