Lot 8: Antique Theodolite by W. & L. E. Gurley survey device
6th December 2017
A late 19th century theodolite surveying device manufactured by W. & L. E. Gurley of Troy, New York, measuring approximately 8 x 15 x 12, in a wooden carrying case. The absence of a serial number dates this instrument to before 1909. Also inside the case are a plumb bob and small magnifying lens. In fine condition, with frozen compass needles; the case has a leather belt which is broken at one end. Theodolites are precision instruments used by surveyors to measure horizontal and vertical angles.
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