Thomson mirror speaking galvanometer, 1858
1858
Scale with metal stand for Thompson mirror speaking galvanometer, 1858
1858
Lens for narrowing light beam for Thomson mirror speaking galvanometer, 1858
1858
Model Passenger Locomotive, 1840-1845
1840-1845
Arithmometer by Elliott Brothers
1885-1894
Lamp cover for Thompson mirror speaking galvanometer, 1858
1858
Model in brass of Silver's patent
1855
Porvell's wave apparatus
Tangent and sine galvanometer
1888
Pohl commutator
1872
Pohl commutator
1872
Universal shunt for sine and tangent galvanometer
1888
Part of transit theodolite, British Antarctic Expedition, 1901
1876-1900
Post office box
Rotating spark
1872
Thomson's reflecting galvanometer
1864-1887
"10,000 legal ohms" resistance by Elliott Bros.
1881-1889
Resistance divider box for use with potentiometer
Rymer-Jones key
Astatic galvanometer by Elliott Brothers, 1872.
1872
Dipping needle with arc
1872
Four-coil Thomson astatic galvanometer
1880
Rheostat, Kelvin Pattern
1888
Astatic mirror galvanometer
1880
Aneroid barometer
Standard mica condenser (capacitance)
Kew pattern unifilar magnetometer
1883
Compass on gimbals
1872
Discharging rod, jointed
1872
Variable electical resistance (0-4 ohms)
1864-1887
Smee cell
1895
Horizontal galvanometer, portable, Post Office form
1890-1930
Hypsometer with carrying case by Elliott Brothers
1831-1870
Kilo-ampere balance (a) Box containing sliding weights
1888
Howlett anemograph by Elliott Bros., 1868 type.
1868-1893
Moving coil chart recorder by Elliott
Case for folding rule clinometer, 1856-1862
1856-1862
Folding prismatic compass, 1853-1860
1853-1860
Bunsen cell
1895
Tangent galvanometer
1864-1886
Resistance box by Elliott Bros., London
Chart ruler, by Dr. Thursfield, London, 1880-1930
1880-1930
electrodynamometer voltmeter
Battenburg's speed and distance scale by Elliott Bros.
Spherometer and glass test plate in fitted wooden box
1870-1919
Electrophorus
1872
Rolling parallel rule by Elliott Bros
1870-1910
Simplex patent steam engine indicator
Compound monocular microscope in case by Elliott Brothers London
1853-1870
Early form of Amsler planimeter c. 1856
1854-1856