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History of Science Museum

Simple Theodolite, by Henry Gregory, London, Later 18th Century

Inventory Number 33470


Acknowledgement: © History of Science Museum, University of Oxford, inv.33470

Subject
Surveying
Item type
Object
Primary inscriptions
"H Gregory London" engraved at 360
Physical material
Brass and silvered brass
Object type
Theodolite
Dimensions
Diameter: 302mm
Inventory No
33470

Description

Horizontal circle with sockets for fixed sights; alidade with vernier, sockets for sights and central compass (with bubble level; needle and glass missing); sights missing. Condition poor.