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Octant made by Spencer & Co., London, England, circa 1830-1840
octant; octant case
INSTRUMENTS - OCTANTSDuren & Costigan; Spencer & Co.
England, London
circa 1835
overall: 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