One of Fleming's first thermionic diode valves, 1889
1889
Experimental carbon pencil microphone, 1878-1890
1878-1890
Powdered graphite microphone, 1878-1890
1878-1890
Crossley table telephone, 1879
1879
Experimental microphone, 1878-1890
1878-1890
Experimental carbon block microphone, 1878-1890
1878-1890
Experimental microphones with carbon pencils and cups, 1878-1890
1878-1890
National Telephone Company directory, 1898-1899
1898-1899
Granular microphone in glass tube, 1878-1890
1878-1890
Coherer with coarse brass turnings, 1894
1894
Syntonic Leyden jars, 1880-1889
1880-1889
Filings coherer, Lodge pattern, 1895-1900
1895-1900
Morse tape on which signals were recorded by means of a coherer, 1900
1900
Filings coherer, glass tube formed into T-shape at one end and bent round into U-shape at other end with bulb, 1899
1899
Coherer, ebonite, with adjustable contacts, 1890-1896
1890-1896
Spiral spring coherer, 1890-1894
1890-1894
Hertzian receiving resonator, 1890-1894
1890-1894
Hertzian oscillator, 1890-1894
1890-1894
Filings coherer, small glass tube with bulb at one end and cap of red sealing wax at other end, 1898
1898
Full dentures, England, 1890-1900
1890-1900
Anthropomorphic iris root
1891-1900
Clear glass specimen jar for turmeric root
1880-1899
Straight spectacles with bifocal perfection lenses
1885-1895
Meerschaum tobacco pipe
1880-1890
Water pipe from Water Street, Manchester
1890-1899
Poster for Magni & C. Vicenza, printed by G Ricordi & C Milano c1900
circa 1900
Bo-Third Rail No D75S
1898
model crane - little elephant
1896
Arithmometer by Elliott Brothers
1885-1894
Light-bulb, filament, carbon
About 1890
Marine thermometer by Negretti and Zambra
1890
Carriage key
1875-1890
Replica of Bell's 1876 'iron-box' receiver, 1959
1876
Bell telephone, mahogany case, 1878
1878
A T & T national telephone directory, October 1896
1896
Stock Exchange automatic telegraph, 1872-1880
1872-1880
Receiving ‘jigger’ used by the Marconi Company, 1899
1899
Letter opener with calendar and map, 1893-1894
1893-4
Experimental transmitting ‘jigger’ used by the Marconi Company, 1899
1899
Replica of the first Morse telegraph, 1835
1934
Mystery watch by Armand Schwob & Frère
1900
Portrait of the Reverand Henry Nelthropp MA, FSA (1820 – 1901)
1896
Gold watch with tourbillon by Girard Perregaux
1879
Ring transformer, 1892
1892
English lever escapement watch with Karrusel by S Smith and Son
1897
Enamel watch depicting the Virgin and Child
1880
Gold amulet in the form of a cobra
2000-100 BCE
Ivory netsuke in the form of doctor and patient
1871-1900
Foetal monaural stethoscope
1875-1885
Robert Dudgeon’s sphygmograph
1876