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Horizontal Magnetic Dial, by S. Porter, London, 1824

Inventory Number 50147

Acknowledgement: © History of Science Museum, University of Oxford, inv.50147

Subject
Sundials
Item type
Object
Makers
S. Porter
Provenance
Not ascertained.
Primary inscriptions
"S. Porter * Fecit Feby 16 * 1824 / Entered * at Stationer's Hall" [printed on pivoted paper disc].
Object type
Magnetic dial
Dimensions
Diameter: 52mm
Inventory No
50147

Description

Turned lignum vitae box [with lid and domed glass cover missing]; varnished printed paper pivoted disc with central brass gnomon, points of the compass and hour lines. The large broad magnetic needle has become detached from the back of the disc.

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