Product images of Sextant
We use a 280gsm fine art paper and premium branded inks to create the perfect reproduction.
Our expertise and use of high-quality materials means that our print colours are independently verified to last between 100 and 200 years.
Read more about our fine art prints.
Manufactured in the UK
All products are printed in the UK, using the latest digital presses and a giclée printmaking process.
We only use premium branded inks, and colours are independently verified to last between 100 and 200 years.
Brass frame, wooden handle. Signed on the bottom of the limb ' Nairne & Blunt, London', and marked 'I [foul anchor] R' stamped at the centre of the scale (at 77). Scale on bronzed limb from -3 to 139 by 20', measuring to 124. Vernier to 30'', zero at right. Tangent screw (bent) on top of the index arm, clamp screw on the back. The index glass is fitted with a Maskelyne flap. Three shades (red, red, green), one horizon shade (red). Index glass adjustment by screw, horizon glass by extended lever and clamp operated from beneath the telescope bracket (Peter Dollond's 1772 patent). Telescope bracket in two parts, fitted for correcting collimation error, and perpendicular adjustment by rising piece. Telescope (129 mm), erect image and two parallel wires. Radius 12'' (305 mm).
The Maskelyne flap consists of a hinged brass flap that can be used to obscure the lower (silvered) half of the index glass. The index arm is inscribed: 'Once the Property of Admiral Sir John Thomas Duckworth, K.C.B., Bart. of Wear B. 1748, D. 1817'.
Nairne & Blunt
- Image reference: F6820-001
- National Maritime Museum, Greenwich, London