Rover 'Safety' Bicycle, 1885
1885
Edison telephone, 1879
1879
Replica of Daguerre-Giroux camera
1839 (original); circa 1988 (replica)
One of Fleming's first thermionic diode valves, 1889
1889
Engraving: Watt's first experiment. Marcus Stone ARA pinxt; Herbert Bourne sculpt; published by Appleton & Co
1879
Brass worksplate no 917, Manning Wardle & Co
1884
Full size wooden model of Beloe's double rail and chair
1877
Novelty model
1955; 1830
Wood-working brace drill, with button-operated latch chuck, 1875-1885
circa 1880
Model of Robert Duncan's screw propeller, with stern frame and rudder, as fitted to the Egyptian government yacht 'Sareea
1886-1887
Swan electric lamp
1878-1879
Silver medal, commemorates the International Health Exhibition
1884
Commemorative spade used to turn the first sod of the River Lee Conservancy's new cutting through Horse Shoe Point
1878
One of Fleming's first thermionic diode valves, 1889
1889
Model vertical cylinder fire engine
circa 1885
Sample of Acid Yellow Dye
circa 1890
Dye Sample
circa 1890
Dye Sample
circa 1890
Dye Sample
circa 1890
Copper ore from the Bell Mine
before 1889
Arsenical cobalt or skutterudite, from Skutterude, near Modum, Norway
before 1889
Syntonic Leyden jars, 1880-1889
1880-1889
Hertzian oscillator, 1890-1894
1890-1894
Enamel watch depicting the Virgin and Child
1880
Gold amulet in the form of a cobra
2000-100 BCE
Straight spectacles with bifocal perfection lenses
1885-1895
Meerschaum tobacco pipe
1880-1890
Arithmometer by Elliott Brothers
1885-1894
Light-bulb, filament, carbon
About 1890
Marine thermometer by Negretti and Zambra
1890
Experimental carbon pencil microphone, 1878-1890
1878-1890
Powdered graphite microphone, 1878-1890
1878-1890
Crossley table telephone, 1879
1879
Replica of Bell's 1876 'iron-box' receiver, 1959
1876
Bell telephone, mahogany case, 1878
1878
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
Granular microphone in glass tube, 1878-1890
1878-1890
Coherer with coarse brass turnings, 1894
1894
Letter opener with calendar and map, 1893-1894
1893-4
Spiral spring coherer, 1890-1894
1890-1894
Replica of the first Morse telegraph, 1835
1934
Hertzian receiving resonator, 1890-1894
1890-1894
Gold watch with tourbillon by Girard Perregaux
1879
Ring transformer, 1892
1892
Robert Dudgeon’s sphygmograph
1876
'Pock-marked faces: A curious illusion', anti-vaccination leaflet
1880-1890
Model Draw Door Weir, 1872
1872 (original); 1909 (model)
Enamel notice, Dinorwic Quarries Railway
1895