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A large brass triangulation theodolite, english, circa 1860, image 1
A large brass triangulation theodolite, english, circa 1860, image 2
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Lot 98
A large brass triangulation theodolite,
english, circa 1860,
19 May 2015, 13:00 BST
London, Knightsbridge

Sold for £8,750 inc. premium

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A large brass triangulation theodolite, english, circa 1860,

with twelve inch horizontal circle, with silver scale and four verniers with magnifiers, telescope with rack and pinion focusing, raised on three levelling screws, on heavy iron base, complete with striding level, 21 in (53cm) high,

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