NATIONAL TELEPHONE COMPANY
B90

Hand Micro-Telephones

HAND MICRO-TELEPHONE - 5 POINT

Pattern No. B90

Comprises - Granular Carbon Transmitter, Receiver (Double Pole), Cord Key, 5-way Plug and 5-way Jack.

Hand Micro-Telephone, 5-point.

This is differentially and is for use in connection with special multiple Switchboard working, other same remarks apply as in the case of Pattern No. B80.

Was B18 in the 1903 Catalogue.
 
 
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Last revised: November 11, 2023

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