This object is eligible for a Certificate of BADA Provenance
About the dealer
About the object
A 10 ½ inch ebony radius vernier octant by Crichton of London for A. Dobbie of Glasgow, circa 1850.
Maker's plate marked: CRIHTON [sic].
Ivory scale divided into 100º
Stepped keystone case: W: 31 cm. D: 36 cm. H: 10 cm.