horological rubber
1850-1900
horological file
1833-1880
horological gravers
1870-1900
Carriage key
1875-1890
seal die - Colchester, Stour valley, Sudbury and Halstead Railway
1846
Railway uniform button, East Lancashire Railway
1845-1859
Conversation tube hearing aid
1860-1900
Glass-stoppered bottle containing uranium
1801-1892 (prepared); 1946 (element replaced)
Jones 50-line switchboard, 1879.
1879
Edison telephone peg switchboard and pegs, 1879
1879
Wall telephone using a Blake transmitter, 1880-1890
1880-1890
Pair of Bell telephones, 1878
1878
Zither switch with open-wire multiple and two-motion ratchet drive, 1894
1894
Strowger step-by-step automatic telephone exchange switch, 1897-1898
1897-1898
Facsimile 1865 homemade telephone, 1888
1888
Wall telephone with Blake transmitter, 1880-1900
1880-1900
Crossley telephone receiver, 1880
1880
Thomson's mirror galvanometer, 1858
1858
Cooke and Wheatstone 5-needle telegraph, 1837
1837
Thomson (Lord Kelvin) double curb transmitter, 1858
1858
'Thunder pump' magneto-electric device, 1856
1856
Portable double-needle telegraph and test set, 1850
1850
Type used for original Morse telegraph, 1835
1835
Letter to The Atlantic Telegraph Company, 1859
1859
William Thomson's marine mirror galvanometer, 1850-1900
1854
Filings coherer, glass tube formed into bulbs at each end at right angles, 1899
1899
Cooke and Wheatstone's A.B.C. telegraph receiver, 1839-1840
1839-1840
Filings coherer, glass tube, 1898
1898
Oersted Compass Needle, 1828
1828
Dog ornament moulded from gutta percha, 1850-1900
1850-1900
Whitehouse's induction coil, 1858
1858
Receiving ‘jigger’ used by the Marconi Company, 1898
1898
Embossing telegraph receiver 1878-1900
1878-1900
Flat steel-spring (or watch-spring) coherer, 1894
1894
Silver thimble, used to pass a current through the 1866 Transatlantic cable, 1860-1866
1860-1866
Sir W. F. Cooke's original electric alarum, 1835-1840
1835-1840
Chart of the Atlantic showing proposed course of the Atlantic Cable, 1856-1857
1856-1857
Pioneers of Electric Telegraphy at the British Association
1865
Lead weight marked 'Reid' from the first cross-Channel telegraph cable, 1850.
1850
Filings coherer, glass tube bent at 45-degree angle at one end to form side-pocket, 1898
1898
Iron borings coherer (Branly type), 1894
1894
Portrait bust of Lord Kelvin, 1896
1896
Transmitting keys for Five-needle telegraph, 1837-1846
1837-1846
Cooke and Wheatstone's ABC telegraph transmitter
1840
Section of first telegraph cable, 1837
1837
Gold watch with the owner's name in place of hour numbers, by William Hardy
1820
Gold watch made for Queen Amelie of France by Henri Motel
circa 1840
Deck-watch used by Capt. William Parry during his attempt to reach the North Pole, 1827
1823
Gold watch with spring detent escapement by Ellicott and Taylor
1815
Gold and enamel half-quarter repeater watch by Brockbanks
1812