F4529-002

Day or night telescope- draw tube inscription Long Caption: This achromatic telescope has a mahogany barrel and a single brass draw tube. The other brass fittings include a sliding eyepiece cover and an objective lens cap. The maker's name is faintly engraved on the draw tube as 'J. Cox & Son, London'. The words 'Night or Day' are inscribed below, indicating that the telescope was designed for use in all light conditions and, therefore, has a relatively large objective lens to collect the maximum amount of light in poor seeing conditions. Credit line: © National Maritime Museum, Greenwich, London Object: NAV1651 Artist: Cox & Son Date: circa 1800 Medium: mahogany; brass; glass Size: length: 509 mm (closed, with cap), 885 mm (fully emm xtended); diameter: 62 mm (barrel) Click here to buy a bespoke print of this image.