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History of Science Museum

Equinoctial Ring Dial, with Quadrant, by Franciscus de Salvis, Madrid, 1695

Inventory Number 48981


Acknowledgement: © History of Science Museum, University of Oxford, inv.48981

Item type
Object
Provenance
Presented by Lewis Evans
Primary inscriptions
"FRANCISC. DE SALVIS ROMAN. FECIT MATRITI 1695".
Physical material
Brass
Object type
Equinoctial ring dial
Dimensions
Diameter: 75mm Height: 81mm Depth: 3mm Weight: 70g
Inventory No
48981
Accession Number
1924-0/part

Description

Brass, calibrated for Northern and Southern latitudes, and with quadrant of degrees [marked: "QVADRANS AD INVESTIGANDAS LATITVDINES"] on reverse of meridian circle.