F1288-2

Reverse of astrolabe quadrant Long Caption: Each side of this phrophatius astrolabe quadrant is marked with a prophatius astrolabe projection. This instrument is for telling the time, and is probably the work of an amateur. Credit line: © National Maritime Museum, Greenwich, London Object: NAV1060 Artist: unknown Date: 17th century Medium: brass Size: 8 mm x 68 mm x 70 mm Click here to buy a bespoke print of this image.