Telephone. horseshoe magnet type

Telephone receiver, Ader type, formerly used in military fieldwork, made in 1894

Telephone receiver, Ader type, formerly used in military fieldwork, made in 1894

Complete Gower bell telephone, 1890

Early form telephone constructed in 1878, used with another similar instrument as sending and receiving instruments between two stations, made to the order of the donor

Sample of lead-covered paper-insulated telephone cable having 130 wires, laid along Rose Street, Edinburgh, in 1905

Complete telephone made by William Holms, Paisley, in 1877, and worked on a line about half a mile long

Telephone of wood and metal, with diaphragm and cover missing, worked on line about half mile long, made by William Holms of Paisley, in 1877

Wood encased Hickley type telephone earpiece

Bell type telephone earpiece in vulcanite by the United Telephone Company

Electric telephone set consisting of an electric bell, microphone, bell push, earpiece and switch hook mounted on a wooden base

Impulse dial for automatic telephone equipment, by the Automatic Telephone Manufacturing Company, c. 1912

Impulse dial for automatic telephone equipment, by the Automatic Telephone Manufacturing Company, c. 1912

Keith line switch, smaller section, part of group of Keith line switches with master switch from original Strowger automatic telephone equipment at the Official Switch Exchange, London, 1912 - 1939

Telephone earpiece of old pattern, 'Butterpat' phone

Hand telephone set, c. 1900, with the handset on a cradle above the instrument which rests on the magnets of the magneto generator, and designed for table mounting