NATIONAL TELEPHONE COMPANY
B150

Magneto Wall Sets

Pattern No. B150

Comprises - Granular Carbon Transmitter, Double Pole Receiver, Cord, Automatic Switch-hook, Induction Coil, Lightning Arrester, Three Magnet Generator, Bell, Backboard and Battery Box.

This is a very serviceable pattern of Wall Set, and can be specially recommended for warehouses, factories, etc.

Was B29 in the 1903 Catalogue.
 

Last revised: November 17, 2025