This impressive range of instruments charts the history of land measurement and map-making, from the 17th century up to more recent developments such as stereoplotting, remote measurement, GPS and map digitisation.
Surveying
Pocket mapmeter by Frodsham
1950
Heliostat mirror 100cm square with foresight attached to one corner and printed instructions on the back, c1950
1960
Eyepiece for levelling a tripod stand above a fixed point, c.1960
c. 1855
Everest theodolite, 6.5 inch horizontal plate, by G & M Simons, 49 King Square, London, no 96, with extra eyepiece
1860-1910
Level and angle indicator by Fletcher and Sinclair, 1860-1910
1851-1900
6 inch brass station pointer by Troughton and Simms, 1851-1900. with instruction book
1914
"Schatz" scale reading microscope, by O. Fennel und Soehne, c. 1914
'Nonien' scale reading microscope by O. Fennel und Soehne, c. 1914
1928
Plane table supplied by supplied by Carl Zeiss (London) Ltd. 1928
1916
Field clinometer Mk III by J. Casartelli & Son, Manchester, England, 1916
1821-1826
Brass plane table protractor, 4.5-inch, by William Simms, London, England, 1821-1826
1801-1900
5 inch altazimuth theodolite by J.D. Potter, mid 19th century
1826-1916
5.25 altazimuth theodolite, probably by Troughton and Simms, 1826-1916
1765-1775
Distance meter (telemeter) for use with plane table, by Georg Friedrich Brander, unsigned, Augsburg, Germany, 1765-75.
1816-1850
Transit theodolite, 8.5 inch, by Thomas Jones, 62 Charing Cross, London, England, 1816-1850.
1850-1900
Brass clinometer with spirit level by W. Bandermann, Berlin, Germany, 1850-1900.
1801-1850
Lens for 6-inch altazimuth theodolite by Dollond, first half 19th century.
1830-1870
Altazimuth theodolite, 6 " horizontal circle, 4-screw plate, micrometer, 2 spirit levels on horizontal plate, one on telescope tube, lacquer patchy, otherwise fair
Altazimuth theodolite by William Cary
300 foot steel measuring tape on reel, by Chesterman of Sheffield, England, 1928.
1871-1900
Screw clinometer, 1871-1900.
1701-1800
Brass plane table alidade, 23-inch, by Bresos(n?), Dijon, France, 1701-1800
1989
Prismatic magnetic compass, unsigned thought to be Europeam manufacture, 1989
1995-1998
Blue plastic Micromap MkII viewer with instruction card.
1862
Lefebvre clitograph level fixed inside box lid. Instructions on clitograph in French. Paper instruction leaflet in English. As patented 1862.
1601-1700
Combined sector and folding alidade, possibly Italian, 17th century
1828-1873
Mining dial on pedestal stand by John Davis, Derby, England, 1828-1873.
1875-1885
Artificial black glass horizon (lacking case and level), unsigned, made by an unknown English maker, 1875-1885. Consisting of a circular anodized brass base with three levelling feet and covered with a blackened glass plate serving as a mirror.
Equatorial mounting, attributed to Henry Hindley, York, mid 18th century
1843-1873
Edye's protractor for converting angled distances to level distances, unsigned, British, 1843-1873 (?).
1845-1855
Miner's surveying compass (mining dial) by Henry Barrow & Co.., 2 Oxenden St., London, England, 1845-1855
Johnson type plane table outfit for comparatively high precision work, by W. and L.E. Gurley, Troy, New York, USA, 1914
1948
Wild autograph A5 photogrammetric plotter, 1948, made by Wild Heerbrugg, Switzerland
5-inch Hoskold type mining transit theodolite with stand by John Davis & Son, Derby, England, 1871-1900.
1940
Surveying aneroid barometer, by T. Wheeler Scientific Insts. Ltd. London, no.B674, 1940, 12cm diam, in leather case
'Constantia' model 100-foot linen measuring tape in leather case, by J. Chesterman & Co. Limited, Sheffield, England, 1928.
1972-1977
ME3000 Mekometer, in working order. Serial no.218030. Made by Kern & Co. AG, Aarau, Switzerland circa 1975. In two orange carrying cases. Powerpacks not supplied
1960-1965
Theodolite, DKM2 model, by Kern & Co. AG, Aarau, Switzerland, serial no. 128593, in carrying case, no tripod, early 1960s. Height (cased) 270 mm, Width (case) 122mm, Length (case) 160mm, Length (telescope) 169mm.
1976
Stereosimplex calibration kit
1908-1912
'Steward' Patent Telemeter, No.286, in case, by J. H. Steward, Strand, London, England, 1908-1912
1912
Invar measuring tape, 100 ft., on aluminium reel, by J.H. Agar Baugh, 92 Hatton Garden, London, England, 1912.
1771-1781
Simple theodolite, with box, trade card and brass parts, by James Search of London, 1771-1781
1970
"DAHLTA 010" tacheometer by VEB Carl Zeiss Jena, Germany, serial no.222812, cased, c.1970
1977
"Permaline" 26/8', 20 metre measuring tape with box by Rabone Chesterman Limited, England, 1977
1981-1990
AGA geodimeter 14 (electronic distance measurer) with battery pack, voltage regulator, three circular slide scales for corrections and operating manual, in carrying case, by AGA Geotronics AB., Sweden, 1981-1990
1957
Autoset surveying level, prototype, with case by Hilger & Watts Ltd, Debden, Essex, England,1957
1930-1939
Pulfrich-Zeiss stereo-comparator, Carl Zeiss Jena, Germany, 1930-1939. Serial no. 11321.
1959
Cased Wild T2 gyrotheodolite no.320852, with MW77 - Gyromat serial no.110, dated 1959. One of the two instruments used by the British surveyors of the time of the Channel Tunnel.
1960-1980
Reg Elta 14 electronic tacheometer, in case, Zeiss, serial no 90317, with five boxes of accessories, two tripods and carrying case for optics (640 x 750 x 340mm)
1918-1922
Brunton pocket transit compass by E.R. Watts, London, England, 1918-1922. Comprising case, compass and stand. (see stroke (and part) records)
