BATTERY INTERCOMMUNICATION TELEPHONES
REPLY-AND-CALL SUB-STATION AUTOMATIC
Pattern No. B605
Comprises Hand Combination Transmitter and Receiver with Double Contact Key, Cord, Automatic Replacement Cradle, Induction Coil, Bell, and Push Button.
This instrument serves the same purpose as Pattern No. B600, a Hand Micro-Telephone, however, taking the place of the transmitter and separate receiver.