Prototype beam splitter for the Advanced Laser Interferometer Gravitational Wave Observatory (aLIGO)
2008 (prototype)
Clockwork drive, for refracting telescope of 5.9-inch aperture
1829
Refracting telescope of 5.9-inch aperture, mounted on English type equatorial mounting with off-set lead counterweight
1829
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
Target wheel used in Accelerator Mass Spectrometer at the Radiocarbon Accelerator Unit, Oxford, 1991.
1991
Trifilar eyepiece micrometer in brass
1775-1800
Ten test bars for use with polar planimeters
1955-1970
Two lens doublets in drawtube inside another tube
1801-1900
One remote interferometer assembly
1973
One linear interferometer assembly Ident.10703A
1973
Swiss movement (incomplete and broken) with chronometer escapement
Graphic eyepiece
1845
Fragment of stem of unidentified instrument
199-500
Parts from the Cambridge Interplanetary Scintillation Array
1967
Tapes measuring - repair outfit No.2
1955
Corner cube for geodimeter range-finder, Swedish, 1977
1977
Centre separating prism for Barr and Stroud rangefinder
1920
Inner tube of Marindin 90cm base rangefinder
Inner tube of Barr and Stroud 2-metre base rangefinder
1920
Sunshine recorder card for August 2nd, 1877
Complete set of smoked plattes
Hygrometer element for variable-frequency radiosonde
1944
Coincidence adjustment of rangefinder
Rangefinder centre prism, strip field type
Radio transmitting set for radiosonde
1973
Sunshine recorder bowls, 1891
1891
Clockwork motor and shutter assembly from Dobson Spectrophotometer
Lenses for Micromap viewer, 1995-1998
1995-1998
Campbell sunshine records for 1877
1877
Anemometer, Robinson type
Bag containing two radiosonde parachutes
1980-1990
Distance Meter for Plane Table, 1765-1775
1765-1775
Sonic electronic anemometer, British, 1988
1988
Accessories case for microdensitometer, 1978
1978
Cable for Standard Solent Anemometer, 1990-1992
1990-1992
Part of Ground station for German radiosonde
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
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
Swiss Chronograph Mechanism, 1860-1880
1860-1880
Geneva independent centre seconds movement
1801-1900