Magnifying stereoscope, 1940

Surveying

1940

Theodolite used for the Principal Triangulation of Great Britain

Surveying

1791

Pedometer by Spencer & Perkins

Surveying

1775-1794

Microptic transit theodolite, 1954

Surveying

1950-1954

‘Trans-Pac’ GPS receiver, 1990-1991

Surveying

1990-1991

Simple theodolite

Surveying

1600-1630

Tellurometer for EDM (Electronic Distance Measurement), 1957-1962

Surveying

1957-1962

Simple theodolite

Surveying

1600-1630

Tripod for plane table outfit

Surveying

1801-1830

Plane table outfit

Surveying

1750-1766

Alidade for plane table outfit

Surveying

1801-1830

Part of Two foot geodetic theodolite, British, 1826-1828

Surveying

1826-1828

Combined graphometer and plummet clinometer, 1663.

Surveying

1663

Surveyor's pocket sextant.

Surveying

1795-1805

Groma

Surveying

200-1 BCE

Altazimuth theodolite

Surveying

1755-1765

Combined replica sleeve and original ball and socket for plane table outfit

Surveying

1801-1830

Plane table board for plane table outfit

Surveying

1801-1830

Field clinometer, British, 1915

Surveying

1915

Sledge-meter used on the Terra Nova Expedition, 1900-1910

Surveying

1900-1910

Watkin type clinometer, British, 1895

Surveying

1895

BRT 006 Basis-Reduktions-Tachymeter, in excellent

Surveying

1976

"Ni 007" level, serial no.200690, by Carl Zeiss, J

Surveying

1970

Altazimuth theodolite, British, 1725-1747

Surveying

1725-1747

Prismatic surveying compass by W. F. Stanley & Co.

Surveying

1900-1920

Repeating Theodolite, Horizontal and vertical circles

Surveying

1875

Tachymeter-theodolite, "Theo 020", serial no.14655

Surveying

1970

Plane table outfit including alidade

Surveying

1801-1830

'Sitesquare' optical square, British, 1959

Surveying

1959

Waywiser

Surveying

1816-1835

Part of sledge odometer, British Antarctic Expedition, 1900-1910

Surveying

1900-1910

Surveying quadrant, 1674.

Surveying

1674

Watkin's type clinometer

Surveying

1890-1914

Angle iron to support levelling staff at bench mar

Surveying

1914

Mining compass & clinometer, German, 1901-1907

Surveying

1901-1907

Stabilizer unit for autoset level, by Hilger & Wat

Surveying

1959

Ferguson solar chronometer and astronomical compass

Surveying

1912

Surveyor's level, German, 1926-1929

Surveying

1926-1929

Combined compass and clinometer, 1870.

Surveying

1870

Mining compass in engraved ivory case, Italian, 17th century

Surveying

1601-1700

Pedometer, gilded brass and silver, cord operated

Surveying

1682-1720

Bridges-Lee type phototheodolite, 1894-1896

Surveying

1894-1896

Improved Patent Portable Theodolite

Surveying

1818-1826

Simple theodolite, Italian, 1676

Surveying

1676

Pedometer signed 'PVP', 1880-1920

Surveying

1880-1920

Prismatic compass with bubble tube and small telescope, 1840-1863

Surveying

1832-1840

Shaft encoder with integral 'Thalimedes' data logger, 1997

Surveying

1997

Prismatic marching compass by J. Lucking and Co, B

Surveying

1901-1930

Clinometer rule, British Antarctic Expedition, 1901

Surveying

1816-1850

Parallax-bar stereometer PB2, after Barr and Strou

Surveying