Details
An early 19th Century vernier octant
the ebony frame with inlaid ivory plaque stamped W Gerrard, Liverpool, the inlaid ivory scale divided 2½°- 0°- 107°, fine tangent screw adjustment with swivel magnifier to brass index arm, six shades, two mirrors and telescope contained within a fitted box with period trade label for John Bruce & Son, Liverpool inside lid -- 12 x 11in. (31 x 29cm.)
See illustration
the ebony frame with inlaid ivory plaque stamped W Gerrard, Liverpool, the inlaid ivory scale divided 2½°- 0°- 107°, fine tangent screw adjustment with swivel magnifier to brass index arm, six shades, two mirrors and telescope contained within a fitted box with period trade label for John Bruce & Son, Liverpool inside lid -- 12 x 11in. (31 x 29cm.)
See illustration