Octant made by Spencer & Co., London, England, circa 1830-1840

octant and case

INSTRUMENTS - OCTANTS
Duren & Costigan; Spencer & Co.
England, London
circa 1830-1840
Case 12-3/4 x 11-1/2 in.

Octant made by Spencer & Co., London, date ca. 1830-1840; in wooden case bearing Duren & Costigan label (established 1855). Of ebony and metal. Maximum length of box 12 3/4" x 11 1/2" across arc.

1959.1011