F4496

Pocket telescope Long Caption: This non-achromatic telescope has four draw tubes made of green vellum, while the barrel is covered in black sharkskin. Credit line: © National Maritime Museum, Greenwich, London Object: NAV1552 Artist: unknown Date: circa 1750 Medium: sharkskin; vellum; wood; brass; glass Size: length: 296 mm (closed), 945 mm (open to stop lines, mamm x.); diameter: 44 mm (barrel), 49 mm (mamm x.) Click here to buy a bespoke print of this image.