Refracting telescope of 5.9-inch aperture, mounted on English type equatorial mounting with off-set lead counterweight
1829
Two foot geodetic theodolite, British, 1826-1828
1826-1828
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
Box type pocket sextant.
1845-1850
Frame micrometer no. 30 by Troughton and Simms
1826-1894
Large Vernier Calliper for Manufacturing Large Calibre Weapons, 1826-1867
1826
Altazimuth theodolite
1826-1916
Circular slide rule by Troughton and Simms
1877
Brass pillar-frame sextant.
1826-1870
Diamond- pattern frame sextant.
1835-1845
Altazimuth theodolite
1826-1916
Reflecting goniometer by Troughton and Simms
1901-1930
28 inch level, by Troughton and Simms, with case
1801-1831
frame micrometer
1826-1894
Royal Society standard thermometer, 1826-1832
1826-1832
Tutton's goniometer, for cutting, grinding and polishing minerals, with case and components
1894
Box of wooden drawing curves by Troughton & Simms
1839-1915
Bearing compass
Split-lens eyepiece micrometer
1870-1874
Brass clinometer
Station pointer
1911
Eccentric wire-gauge
Incomplete portable transit instrument by Troughton and Simms
1826-1851
bronze standard of Imperial and Metric length
1869
Diamond-frame pattern sounding quintant.
1885-1895
6 inch station pointer by Troughton and Simms
1801-1900
Meirs type reflecting goniometer with complete adjustment
1893
Brass standard 4 feet, in mahogany case
1826
Station pointer
1851-1900
Cyclograph for setting out railway curves, British, 1849
1849
Double sounding quintant.
1835-1845
Tubular 5-foot standard scale by Troughton and Simms
1833
Standard yard, in mahogany case
Velvet-lined burgandy leather box for dynameter with handwriten note
1790-1890
Brass dynameter
1790-1890
Two foot
Apparatus for determining expansion of Standard Yard - Metre bars
1844
Collimator telescope
1860-1880
Two foot
Folding-arm brass protractor by Troughton & Simms
1840-1860
Case for brass pillar-frame sextant
1824-1851
Bronze 3" End-Measure No. 81, with agate plugs
1844-1850
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