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Two-wire telephone repeater, 1923-1925
Two-wire telephone repeater, made by Standard Telephones and Cables in collaboration with Western Electric Company, British, 1923-1925
polarized 'guillotine' relay, 1862-1866
Polarized 'guillotine' relay, designed by W Andrews, England, 1862-1866.
Post Office 332 telephone, 1938
Post Office no. 332 telephone, black, unknown maker, England, 1938.
Brooch in the shape of a horseshoe with a riding crop
Ethnography and Folk Medicine
Amulet, tin, gilt, brooch in form of shoe and riding crop on horseshoe, reputedly worn by soldier of the Middlesex Regiment, from Lovett collection, British, 1914-1918
Glass tube containing a portion of the first submarine cable laid between Dover and Calais, 1875-1913
Glass tube containing a portion of the first submarine cable between Dover and Calais, plus screws for mounting, unknown maker, England, 1875-1913
Wax portrait of Benjamin Lewis Vulliamy (1780 – 1854)
Wax portrait of Benjamin Lewis Vulliamy (1780-1854) by Richard Cockle Lucas 1851
Red Cross fund-raising brooch made from Zeppelin wire, 1917.
Brooch made of wire from the first Zeppelin brought-down in England, mounted on card by the British Red Cross, presumably for fund-rising purposes, c.1917
Clockwork interruptor, once owned by David Hughes, 1875-1880
Clockwork interruptor made and used by David Edward Hughes (1831-1900), England, c. 1879
Receiver printer for stock exchange printing telegraph, 1907
Receiver printer, or stock ticker, for Stock Exchange printing telegraph, No. 5187, made by the Exchange Telegraph Company, England, 1907
Isambard Kingdom Brunel, English civil engineer, mid-19th century.
Plaster bust of Isambard Kingdom Brunel
Wheatstone ABC telegraph receiver, 1942
ABC telegraph receiver, invented by Sir Charles Wheatstone, unknown maker, England, 1842
Ceramic pot for Oriental toothpaste
Ceramic pot for oriental tooth paste, supplied by Liptrot and Co., Accrington, England, 1870-1910
Spark gap or knob coherer, 1889
Spark gap or knob coherer, unknown maker, England, 1889. Used by Sir Oliver Lodge to first show the coherer effect and detect electric surgings by closing the circuit of a galvanometer during experiments on lightning guards.
Early submarine cables and grapnel, 1858-1866.
Glazed case (no glass) containing specimens of submarine cables etc:- viz: (a) two specimens of shore end and two specimens of main cable of each of Atlantic cables, 1858, 1865 and 1866; (b) two specimens of grapnel rope used in recovery of 1865 cable; (c) two specimens of 1865 cable recovered; (d) model of grapnel used in recovery of 1865 cable
Hen-feathered male Sebright bantam
Hen-feathered male Sebright bantam, bred by Thomas Hunt Morgan, United States, 1914-1924
Henley needle galvanometer, 1855-1860
Henley needle galvanometer used in receiving the first telegraphic message transmitted across the Atlantic Ocean, made by W T Henley, British, around 1858.
Specimen of telegraph cable laid in Birmingham in 1856
Specimen of early telegraph cables laid in Birmingham in 1856, unearthed in 1898, unknown maker, British, 1856. 12 gutta-percha covered copper wires, each wire being around 1.67mm in diameter, making it most likely a No. 16 gauge wire of the period. The gutta-percha covering makes each wire 5.6mm in diameter
submarine cable laid across the River Medina, 1878
Submarine telegraph cable laid across the River Medina, Isle of Wight, 1878, recovered 1977. Believed used in A.G. Bell's telephone experiment between Cowes and Osborne House.
selector switch, 1903
Selector switch, made by the Clark Automatic Telephone Company, United States, 1903. From automatic interdepartmental telephone switchboard installed at Guy's Hospital, February, 1903
Experimental form 1 (Licence to use Wireless Telegraph), 1905
Experimental form 1 (Licence to use Wireless Telegraph for Experimental purposes) dated 14 November 1905 and made out to Ernest Dundas Gledall Esq BSc, issued by the General Post Office on behalf of the Postmaster General, British, 1905
Crossley telephone receiver, 1880
Telephone receiver, Crossley's patent 1880, unknown maker, British, 1880.
Pioneers of Electric Telegraphy at the British Association
Framed photograph of 'Pioneers of Electric Telegraphy at the British Association Birmingham 1865', unknown maker, British, 1865
Home-made equipment for 30-line television reception, 1929-1935
Home-made equipment for 30-line television reception, unknown maker, British, 1929-35. Comprises Nipkow disc, neon lamp, viewing lens, phonic-wheel unit, home recorded discs of signals, square punch for Nipkow disc).
Glass flask containing urine
Glass flask, containing urine, prepared by Lister, used in his experiments on putrefaction, from 1871-1877
Model of the Blue Star Line T.S. 'Arandora Star'
Whole model, scale 1:48, of the Blue Star Line twin-screw turbine steamer 'Arandora Star' (launched in 1927), probably by Cammel Laird and Co Ltd, Birkenhead, England, 1927-1946
Hand perforator and copy stand for Wheatstone automatic telegraph system, 1890-1910
Hand perforator and copy stand for Wheatstone automatic telegraph system, invented by Charles Wheatstone, unknown maker, probably British, 1890-1910. Wheatstone two unit stickpunch with paperslip dispenser.
gutta-percha hearing aid, 1840-1910
Gutta percha hearing aid, unknown maker, English, 1840-1910. Once the property of Dr. Laidlaw Purves.
Portable double-needle telegraph and test set, 1850
Portable double-needle telegraph and test set, with removable wooden cover, unknown maker, possibly British, 1850
Model pipe with funnel top
Yellow metal model of pipe with square funnel-like top. Sticker marked 45. Part of a collection of small models of sanitary appliances, to be used for instruction in hygiene, in cabinet
Two lancets in a patterned silver case
Two lancets, steel blade in tortoiseshell sheath, by Savigny and Co. of London, 1810-1850, in silver case, inscribed "R.G.," made in Birmingham in 1844
'Tabloid' medicine chest used on 1924 Mount Everest Expedition
Materia Medica & Pharmacology
'Tabloid' medicine chest, empty, used on 1924 Mount Everest Expedition, made and patented by Burroughs, Wellcome and Co., London, 1887-1924
Robert Dudgeon’s sphygmograph
Sphygmograph which belonged to Dudgeon, by J. Ganter, 19 Crawford Street, London, England, 1876.
Steljes ABC type printing telegraph receiver
Steljes ABC type printing telegraph receiver No. 477, made by the Typewriting Telegraph Corporation Limited, London, England, 1895-1910
London Dome ear trumpet
Small square ear trumpet, hearing aid, European, 1869-1900
Calliper used to measure head size
Psychology, Psychiatry & Anthropometry
Phrenological calliper(?), possibly nickel-plated brass, from the British Phrenological Society, by Arnold and Sons, London.
Short-wave adaptor for broadcast receivers, 1935-1936
Short-wave adaptor for broadcast receivers, made by BTS Ltd, Brighton, England, 1935-1936.
Electrogalvanic amulet, disc with zinc cross surrounded by six-petaled flower of zinc and copper, suspended on chain made of alternating copper and iron(?) links, made by I. Morana, Geneva, Swiss, 1870-1935. Six holes around edge, two used to attach chain. 'I.MORANA. | GENEVE' engraved on face. Note gap in iron(?) band around edge of disc. Similar to Richardsons-type amulets (A602762, A602763).
Galvanic brooch, various metals, with head profile of a bald bearded man, by Z. Osselin, French, 1880-1920
Bas-relief head and shoulders of Guglielmo Marconi, 1903
Bas-relief head and shoulders of Guglielmo Marconi on brass lamina, engraved "1903, R. Bravi, Milano", made by R Bravi, Milano, Italy, 1903
Whitworth standard wire gauge
1869 to 1897
Whitworth standard gauges for checking and adjusting wire gauges, based on the Whitworth proposed standard wire gauge; range 0.1-0.01 inches. The gauge is the flat part of the round bar: the gauge measurement being the distance across the flat surfaces. The use or standardisation of the decimal system was proposed by Whitworth when he was president of the Institution of Mechanical Engineers 1856 to 1857: 'Paper on a standard decimal measure of length'. Following the standard procedure and logic at that time each gauge size serves to establish that wire size standard. The concept of tolerance or specification by limits of acceptability had not at that time been established. These decimal gauges were never accepted as a national standard. The number of his wire gauge corresponds with sizes in thousandths of an inch from 1 to 500 with logical increases in increment of 0.001 (for small sizes) to 0.025 for the larger end of the range.
Oil lamp base for Thomson mirror speaking galvanometer, 1858
Oil lamp base for Thomson mirror speaking galvanometer, made by Dietz and Company, City of London, England, 1858
Central Battery transmitter (sectioned), 1903-1926
Sectioned solid C.B. transmitter, made by the British L M Ericsson Manufacturing Company for the British Post Office, Beeston, Nottinghamshire, England, 1903-1926
Sinclair line selector automatic switch board, 1880-1890
Sinclair line selector automatic switch board (glass broken and incomplete), patented by David Sinclair, probably made by the National Telephone Company, British, 1880-1890
Wine glass possibly used as a culture glass by Joseph Lister
Wine glass, possibly used as a culture glass by Joseph Lister
Syntonic Leyden jars, 1880-1889
Two syntonic Leyden jars, unknown maker, Germany, 1880-1889. Possibly the actual ones used by Oliver Lodge in March 1889 at the Royal Institution to demonstrate resonance in adjacent circuits when at the same frequency.
BBC printing stamp
BBC printing stamp issued to the Willesden Wireless Company, British, 1922-1924.
loading coil, 1910-1930
Loading coil, unknown maker, probably British, 1910-1930
Ring transformer, 1892
John Gavey's ring transformer, used between Lavernock and Flatholm, made by John Gavey, Wales, 1892. Mounted on polished wooden board
The Ivel Agricultural Tractor
Ivel agricultural tractor on three steel wheels (front single, with solid rubber tyre; rear, straked), designed by Daniel Alborne, and made by Ivel Agricultural Motors Limited, Biggleswade, Bedfordshire, England, 1902, and two spark plugs by Lodge Sparking Plug Company Limited, Birmingham, Warwickshire, England, 1913-1920. Engine: 2-cylinder horizontally opposed petrol. Believed to be the first 'production' tractor built by Ivel, and the first British internal combustion engine powered light agricultural tractor.