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History of Science Museum

Bloud-Type Magnetic Azimuth Dial, by Charles Bloud, Dieppe, c. 1660

Inventory Number 47362


Acknowledgement: © History of Science Museum, University of Oxford, inv.47362

Subject
Sundials
Item type
Object
Provenance
Bequeathed by T. G. Barnett.
Primary inscriptions
"Fait Et In par Charle Bloud ADieppe" engraved on perpetual calendar.
Object type
Magnetic dial
Dimensions
Height: 76mm Width: 64mm Depth: 16mm
Inventory No
47362
Accession Number
1935-4/part

Description

1a universal equinoctial and polar dials; 1b combined lunar volvelle and southern part of equinoctial dial, and latitude scale; 2a horizontal string-gnomon dial and magnetic azimuth dial with coloured printed card incorporating latitude list; 2b perpetual calendar volvelle. Leaf 1 bowed; leaf 2 and compass glass cracked.