![An early 19th Century 11½in. radius vernier ebony, brass and ivory octant by I.N. Keot[?]](https://www.christies.com/img/LotImages/2001/CSK/2001_CSK_09110_0191_000(025320).jpg?w=1)
Details
An early 19th Century 11½in. radius vernier ebony, brass and ivory octant by I.N. Keot[?]
the inset ivory scale divided 2½°- 0°- 100° and stamped with maker's mark at centre, vernier clamp with fine screw adjustment, 'T' frame with maker's mark stamped at bottom and with inset signed ivory plaque in cross bar with pencil hole in middle, double pin hole sight, three mirrors (one missing), three interchangeable shades (middle cracked), inset ivory note plaque to reverse with brass fittings and pin feet -- 14in. (35.5cm.) high
See illustration
the inset ivory scale divided 2½°- 0°- 100° and stamped with maker's mark at centre, vernier clamp with fine screw adjustment, 'T' frame with maker's mark stamped at bottom and with inset signed ivory plaque in cross bar with pencil hole in middle, double pin hole sight, three mirrors (one missing), three interchangeable shades (middle cracked), inset ivory note plaque to reverse with brass fittings and pin feet -- 14in. (35.5cm.) high
See illustration
Special notice
No VAT will be charged on the hammer price, but VAT at 17.5% will be added to the buyer's premium which is invoiced on a VAT inclusive basis.