Altazimuth theodolite, 1731-1766

Altazimuth theodolite, 1731-1766 Altazimuth theodolite, 1731-1766 Altazimuth theodolite, 1731-1766 Altazimuth theodolite, 1731-1766 Altazimuth theodolite, 1731-1766 Altazimuth theodolite, 1731-1766 Altazimuth theodolite, 1731-1766 Altazimuth theodolite, 1731-1766 Altazimuth theodolite, 1731-1766 Altazimuth theodolite, 1731-1766

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Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

King's College, London| Enquiries to Science Museum, London
© The Board of Trustees of the Science Museum

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Altazimuth theodolite by Benjamin Cole, Fleet Street London, mid 18th century.

Theodolite, mid 18th century. This instrument by Benjamin Cole bears the coat of arms of the Duke of Cumberland, and may have been used during the survey of the Highlands of Scotland in 1747. It measures both vertical and horizontal angles, a type of theodolite not widely used by ordinary surveyors until the 19th century. The horizontal angle between two positions was read off the base while vertical angles were read off the arc. It would have stood on a tripod.

Details

Category:
King George III
Object Number:
1927-1923
Materials:
brass, glass and silver
Measurements:
overall: 280 mm x 335 mm x 210 mm, 4.41 kg
type:
altazimuth theodolites and theodolites
credit:
King's College, London