Great spinning wheel
Ribbon loom with jacquard head
circa 1900
Architect's model of S&J Watts' warehouse
1850-1856
Signal Block Bell, South Eastern Railway
1862
High frequency sliding inductance on wood base, 1900-1950
1900-1950
Wooden pillar insulators, 1900-1950
1900-1950
Stud field regulator, 1900-1950
1900-1950
Whirling Psychrometer, 1950-1953
1950-1953
horological gravers
1850-1900
Wall telephone, 1880-1920
1880-1920
Replica of Bell's 1876 centennial telephone transmitter, 1959
1959
Wall telephone with battery box, 1880-1940
1880-1940
Mechanical telephone, 1880-1920
1880-1920
Replicas of Alexander Graham Bell's 1879 'Patent Office' telephone, 1959
1959
Edison telephone, 1879
1879
Magneto-ringing Ericsson telephone, 1892-1920
1892-1920
Submarine repeater valve, 1950-1960
1950-1960
Bell's harmonic telegraph receiver, 1925-1958
1925-1958
Non-working model of a proposed domestic robot, 1970 - 1980
1970-1980
Rotary convertor, 1900-1950
1900-1950
Celestial globe by Willem Janszoon Blaeu
1603
Part of Rugby transatlantic telephone transmitter, 1927-1956
1927-1956
Powdered graphite microphone, 1878-1890
1878-1890
Guard lamps on wooden board, 1900-950
1900-1950
Reproduction in wood. No 127
1808
Section of TAT-8 transatlantic optical fibre cable, 1989
1989
Five-line single cord switchboard, 1900-1909
1900-1909
Selector switch, 1903
1903
Replicas of Alexander Graham Bell's 1879 'Patent Office' telephone, 1959
1959
Aerial tuning inductance, 1900-1950
1900-1950
Model of adenovirus
1974-1976
Ceramic teaching doll to show treatment for polio
1930-1950
Replica of Bell's 1876 'iron-box' receiver, 1959
1876
horological gravers
1850-1900
Experimental microphone, 1878-1890
1878-1890
Reproduction in wood, Dr Joseph Black
1809
horological graver
1850-1900
Iolanda transformer in wooden box, 1900-1950
1900-1950
Experimental microphones with carbon pencils and cups, 1878-1890
1878-1890
Low frequency iron core inductance, 1900-1950
1900-1950
Tuning indicator with lamp, 1900-1950
1900-1950
Replica of Bell's liquid transmitter of March 1876, 1880-1958
1880-1958
Bell telephone, mahogany case, 1878
1878
Spirit level, North British Railway, Caledonian Railway, and London & South Western Railway
Umbrella handle
Carriage Ashtray from Quintinshill Disaster
1915
London & North Eastern Railway gallantry medal
1947
Crossley table telephone, 1879
1879
Table instrument with dial, 1903
1903