Eight brass screws from the 3-foot geodetic theodolite

Made:: 1791 in Piccadilly, London and England

maker:: Jesse Ramsden

Eight brass screws Metal clamp from the 3-foot geodetic

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Eight brass screws Metal clamp from the 3-foot geodetic
Science Museum Group
© The Board of Trustees of the Science Museum

Eight brass screws in plastic seal-lock bag. Part of the three-foot geodetic theodolite, sometimes called the ‘great Theodolite’, used for the Principal Triangulation of Great Britain. Made by Jesse Ramsden, Piccadilly, London, 1791.

Details

Category:: Surveying

Object Number:: 1876-1203/8

Materials:: brass (copper, zinc alloy)

type:: screw

credit:: Ordnance Survey

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