New Zealand Post Office
Telephone HB670, HB671, HB672 and HB673

This is an Automatic, Bakelite cased, table telephone, coloured black.

Similar to the BPO Telephone No. 332 (Mark 2A).

Produced by ATM as their L11568.A6 and British Ericsson as their N1002A47.

Case and handset colours:-
HB670 - Black.
HB671 - Green.
HB62 - Ivory.
HB673 - Red.

NZPO Engineering Notes Telephones, Stations, C1360 refers.

Circuit Diagram

Last revised December 24, 2025

FM2