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Prismatic Compass, by Thomas Jones, London

Inventory Number 11447

Acknowledgement: © History of Science Museum, University of Oxford, inv.11447

Subject
Navigation
Item type
Object
Primary inscriptions
"THOMAS JONES / 62, Charing Cross, / London"
Other inscriptions
Royal Astronomical Society / Presented by Mifs Sheepshanks. No.24
Object type
Compass
Dimensions
Height: 28mm Width: 75mm Depth: 94mm Weight: 0.25kg
Inventory No
11447

Description

Prismatic compass. Brass body, glazed, with whole of blue/green compass face visible. Compass face is inscribed with a number scale around the edge ranging from 1 - 360 in increments of 10. Hinged object vane with horse hair? and glass lens to one side of compass and hinged prism to the other side.

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