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Lord Kelvin, Scottish mathematician and physicist, with his compass, 1902. Artist: James Craig Annan
 
Lord Kelvin, Scottish mathematician and physicist, 1899
 
Lord Kelvin, Scottish mathematician and physicist, 1897. Artist: James Craig Annan
 
Ader telephone system, 1881
 
Cook and Wheatstone's 5-needle telegraph, 1837 (1915)
 
Communicating by speaking tube, 1882
 
Carbon microphone, 1882
 
Rear view of Charles Wheatstone's electric (railway) telegraph, 1850
 
Caselli's pantelegraph, 1874
 
Caselli's pantelegraph, 1874
 
Alexander Glen's facsimile telegraph system, 1886
 
Telegraph wire at the Greenwich works, c1865
 
US Mail Boat 1870. Artist: Leila Bauman
 
Long wave transmitter masts at a Marconi radio station at Berne, Switzerland, c1925
 
Henry Cole, British designer, civil servant and writer, 1871
 
Lord Kelvin, Scottish physicist and mathematician, 1897. Artist: Spy
 
Under the Dark Blue Waters, 1872. Artist: Joseph Swain
 
The Man for the Post 1882. Artist: Joseph Swain