Two foot geodetic theodolite, British, 1826-1828
1826-1828
Refracting telescope of 5.9-inch aperture, mounted on English type equatorial mounting with off-set lead counterweight
1829
Portable transit instrument, with case and components
1840-1860
Two foot geodetic theodolite, 1826-1828
1826-1828
Prismatic magnetic compass, British, 1826-1876
1826-1876
Cambridge Observatory eight-foot mural circle
1832
Frame micrometer no. 30 by Troughton and Simms
1826-1894
Box type pocket sextant.
1845-1850
Altazimuth theodolite
1826-1916
Circular slide rule by Troughton and Simms
1877
Large Vernier Calliper for Manufacturing Large Calibre Weapons, 1826-1867
1826
Brass pillar-frame sextant.
1826-1870
Altazimuth theodolite
1826-1916
Reflecting goniometer by Troughton and Simms
1901-1930
28 inch level, by Troughton and Simms, with case
1801-1831
Tutton's goniometer, for cutting, grinding and polishing minerals, with case and components
1894
Royal Society standard thermometer, 1826-1832
1826-1832
frame micrometer
1826-1894
Brass clinometer
Bearing compass
Split-lens eyepiece micrometer
1870-1874
Diamond-frame pattern sounding quintant.
1885-1895
Station pointer
1911
Incomplete portable transit instrument by Troughton and Simms
1826-1851
Brass standard 4 feet, in mahogany case
1826
Meirs type reflecting goniometer with complete adjustment
1893
bronze standard of Imperial and Metric length
1869
Double sounding quintant.
1835-1845
Cyclograph for setting out railway curves, British, 1849
1849
Station pointer
1851-1900
6 inch station pointer by Troughton and Simms
1801-1900
Velvet-lined burgandy leather box for dynameter with handwriten note
1790-1890
Standard yard, in mahogany case
Brass dynameter
1790-1890
Tubular 5-foot standard scale by Troughton and Simms
1833
Two foot
Micrometers for large mural Circle
1832
Micrometers for large mural Circle
1832
Collimator telescope
1860-1880
Folding-arm brass protractor by Troughton & Simms
1840-1860
Case for brass pillar-frame sextant
1824-1851
Box for bronze End-Standard yard
1844-1850
Mahogany case containing polishing discs, tools etc.
1894
Tripod for surveying level, British, 1841
1841
Surveying camera for photogrammetric outfit, 1901-1915
1901-1915
Case for photogrammetric outfit, 1901-1915
1901-1925
Main part of tacheometer, British, 1885-1895
1885-1895
Object Glass for large mural Circle
1832
Tutton's goniometer
1894
Part of Everest type Theodolite, English, 1875-1915
1875-1899