GEC No. 22
Similar to the GPO wall set, this telephone is fitted with Electro-magnetic receiver and a solid back transmitter.
The ringer, condenser and auxiliary apparatus are fitted in the case of
the set which is of well seasoned polished walnut or teak for use in the
Taken from the GEC Private Automatic Telephone Exchanges No. 18 (undated)
Last revised: January 30, 2021