F4498

Portable telescope Long Caption: The telescope barrel is covered in rayskin (shagreen) that has been dyed green, while the four draw tubes are made of green vellum. Credit line: © National Maritime Museum, Greenwich, London Object: NAV1525 Artist: unknown Date: circa 1770 Medium: rayskin (shagreen); vellum; brass; glass Size: length: 302 mm (closed, with cap), 1048 mm (open to stop lines); diameter: 46 mm (barrel) Click here to buy a bespoke print of this image.