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Wall Mounted Telephone

Wall Mounted Telephone
Elektrisk Bureau Kristiania Norway, 1898 y.

Wall Mounted Telephone 1898, Norway, Elektrisk Bureau Kristiania This device with magneto calling without battery box. Used a handset with a carbon microphone and an electromagnetic telephone on a lever holder and polarized bell. The battery was located in a separate box. Designed to work in city networks. Used in the Scandinavian countries.