NATIONAL TELEPHONE COMPANY
B330

COMBINED TABLE AND WALL BATTERY SETS

Pattern No. B330

Comprises - Hand Combination Transmitter and Receiver with Double Contact Key, Cord, Fixed Cradle, Induction Coil, Buzzer, Push Button, Wall Rosette and Cord (the two latter when in Table Form).

The great advantage of this Battery Ringing Set is that it can in a few seconds be made into either a Table or Wall Set, the only tool required being a small screw-driver and the alteration consisting of either removing, or adding the Pillar, Wall Rosette and Cord, as illustrated above.  The removable parts lift off with ease.

This was model B55 in the 1903 Catalogue. 

B56 is the same telephone but with a non-convertible cradle.
  

Last revised: November 17, 2025