Prototype beam splitter for the Advanced Laser Interferometer Gravitational Wave Observatory (aLIGO)
2008 (prototype)
Refracting telescope of 5.9-inch aperture, mounted on English type equatorial mounting with off-set lead counterweight
1829
Clockwork drive, for refracting telescope of 5.9-inch aperture
1829
Graphic eyepiece
1845
Fragment of stem of unidentified instrument
199-500
Part of Ground station for German radiosonde
Corner cube for geodimeter range-finder, Swedish, 1977
1977
Radio transmitting set for radiosonde
1973
Sunshine recorder card for August 2nd, 1877
Small French verge movement
1790
Movement with lever escapement
1820
Chronometer watch movement
French verge movement by Breguet
1775-1800
Modern Geneva lever with independent centre seconds
1801-1900
Rack lever with compensating curb
1808-1825
Centre-seconds stop-watch by Jno. Archer
1737-1738
15-day movement with horizonatal escapement
1831
Small movement with detached lever escapement by Vauchez
1767-1786
Set of (3) wheels used in motion work of a watch
1900-1912
Portion of watch including verge escapement
1900-1912
Pendulum watch with verge escapement and cock
1790
Swiss Chronograph Mechanism, 1860-1880
1860-1880
Geneva independent centre seconds movement
1801-1900
Stop watch movement
1800-1834
Movement with rack-lever escapement
1805-1846
Stop watch mechanism
1775-1785
Half-quater repeater with horizontal escapement
1750
Chronometer escapement
Chronometer escapement
1810
Verge repeater
1720
Rangefinder centre prism, strip field type
Stop watch movement
hallmarked 1784
Chronometer escapement
1790
Centre separating prism for Barr and Stroud rangefinder
1920
Clockwork mechanism for Shaw type seismograph, British, 1930-1935
1930-1935
Clockwork mechanism for Shaw type seismograph, British, 1930-1935
1930-1935
Water volume measuring vessel
Clockwork motor and shutter assembly from Dobson Spectrophotometer
Parts from the Cambridge Interplanetary Scintillation Array
1967
Gravity Probe B gyroscope rotor and housing
1992-1995
Wood piece from bottom of the regulator clock by Cope and Molyneux
1822-1823
Wood piece from Regulator clock by Cope and Molyneux
1822-1823
Movement plates from Regulator clock by Cope and Molyneux
1822-1823
Eye piece lens and segment of draw tube from a draw tube telescope
Part of a refracting telescope
Segment from a draw tube telescope
1700-1750
Brass drive weight from Regulator clock by Cope and Molyneux
1822-1823
Target wheel used in Accelerator Mass Spectrometer at the Radiocarbon Accelerator Unit, Oxford, 1991.
1991
Inner tube of Marindin 90cm base rangefinder
Part of levelling staff, British, 1915-1922
1915-1922