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History of Science Museum

Miner's Compass and Clinometer, by William Harris & Co, London, 1830s

Inventory Number 95733


Acknowledgement: © History of Science Museum, University of Oxford, inv.95733

Item type
Object
Provenance
Lot 21 Conrad W. Cooke Sale, 1926
Primary inscriptions
"Harris & Co./ Holborn London" [on compass rose]. "BY HIS MAJESTY'S ROYAL LETTERS PATENT./WILLIAM HARRIS & Co./ Manufacturers of/ Optical, Mathematical & Philosophical/ INSTRUMENTS,/ 50, High Holborn corner of Brownlow Street,/ LONDON and at HAMBURGH".
Object type
Clinometer
Dimensions
Diameter: 125mm
Inventory No
95733

Description

copper alloy dial and projecting pieces for the sights; silvered-copper alloy compass rose and scale in four quadrants, with outer scale of 360°;copper alloy lid to dial marked "Diff of Hypo & Base" and two scales: 50°-0°-50°, and 30°-0°-30°; all in a mahogany case.