Model demonstrating different types of eye sight, Europe, 1880-1900
1880-1900
Clinical thermometer
1851-1900
Sectional Model of a Beam Engine, 1866.
1866
Hangman's rope, England, 1870-1888
1870-1888
Tower's handcuffs
1882-1890
Model of a MacPherson-type ambulance, England, 1851-1900
1851-1900
Paddlewheel used by James Joule
c1860
Cupriferous sandstone from Schweinkopf
before 1889
Sample of Bessemer Steel
1860
Horological gravers
1850-1900
Horological graver with narrow lozenge-shaped profile and wooden handle by unknown maker
1850-1900
horological rubber
1850-1900
Granular microphone in bamboo tube, 1878-1890
1878-1890
Powdered graphite microphone, 1878-1890
1878-1890
Powdered graphite microphone, 1878-1890
1878-1890
Section of cross-Channel telephone cable, 1897
1897
Experimental microphone using steel needles and gas carbon, 1878-1890
1878-1890
Wall telephone with Blake transmitter, 1880-1900
1880-1900
Crossley telephone receiver, 1880
1880
Portable double-needle telegraph and test set, 1850
1850
Filings coherer, glass tube formed into bulbs at each end at right angles, 1899
1899
Cell used in interruptor circuit, 1875-1890
1875-1890
Polarized 'guillotine' relay, 1862-1866
1862-1866
Clockwork interruptor, once owned by David Hughes, 1875-1880
1875-1880
Filings coherer, glass tube, 1898
1898
Copper earthing tube believed to have been used by Marconi, 1890-1897
1890-1897
Magneto-electrometer, 1857
1857
Dog ornament moulded from gutta percha, 1850-1900
1850-1900
Whitehouse's induction coil, 1858
1858
Flat steel-spring (or watch-spring) coherer, 1894
1894
Iron borings coherer (Branly type), 1894
1894
Silver thimble, used to pass a current through the 1866 Transatlantic cable, 1860-1866
1860-1866
Pioneers of Electric Telegraphy at the British Association
1865
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
Spark gap or knob coherer, 1889
1889
Holmes' arc lamp from South Foreland Lighthouse, about 1860-80.
1860-1880
Pendant in form of plastic model of "Heinz" gherkin
1885-1895
Beale-type microscope
1871-1900
Cast iron hospital bed
1851-1900
Ceramic pot lid for Beddard's Belgravia tooth paste
1860-1900
Four ivory charity collection tallies
1863-1880
Stuffed "princely Mastigure" lizard amulet
1881-1900
Plaque for cot, Great Ormond Street Hospital
1900
Statue depicting Florence Nightingale
1851-1900
Chicle gum in specimen jar
1850-1900
Sunglasses with dark blue lenses
1860-1900
Packet of pure quinine powder
1890-1900
Bird cage from Sussex Lunatic Asylum
1872
Straight spectacles with folding lenses
1851-1900