TELEPHONE No. 19
Wall type telephone with Deckert transmitter for use on CBS exchanges. This telephone is fitted with two switch hook switches and two receivers
Also known as the Post Office telephone for Granular Transmitter 'B' (GTB).
It has a press button fitted in the top of the case.
There is no bell in the telephone so a Bellset must be provided.
Note the oval brass number plate. Each bell and telephone carried its inventory number. Around 1907 the Post Office realised that numbering each telephone was too much effort for too little usefulness and stopped the practice.
Picture dated 1901
Last revised: December 02, 2020