Bloud-Type Magnetic Azimuth Dial, by Ephraim Senécal, Dieppe, Late 17th Century

Subject: Sundials; Mathematical instruments
Item type: Object
Makers: Ephraim Senécal
Provenance: Presented by Lewis Evans
Primary inscriptions: "Ephraim Senécal ADieppe Fecit" engraved on perpetual calendar volvelle.
Physical material: Ivory; silver; silvered brass and paper
Object type: Magnetic dial
Dimensions: Height: 17mm Width: 90mm Depth: 102mm Weight: 228g
Inventory No: 44363
Accession Number: 1924-0/part

Description

Compass needle and glass missing