Details
An early 19th-Century vernier octant signed Heath. Erith. Kent. New York
constructed in ebony, ivory and brass, the inlaid ivory scale divided 2½°- 0°- 110°, the inlaid makers plaque in 'T'-bar further engraved M. DUREN, double pin hole sight with slide, three shades, two mirrors, inlaid ivory note-square to reverse and brass pin feet; the radius -- 10in. (25.5cm.); complete with keystone case -- 13in. (33cm.)
See illustration
constructed in ebony, ivory and brass, the inlaid ivory scale divided 2½°- 0°- 110°, the inlaid makers plaque in 'T'-bar further engraved M. DUREN, double pin hole sight with slide, three shades, two mirrors, inlaid ivory note-square to reverse and brass pin feet; the radius -- 10in. (25.5cm.); complete with keystone case -- 13in. (33cm.)
See illustration