E5560-3

Astrolabe: dismounted obverse Long Caption: The small, plain tri-lobed throne bears a Koranic verse (see AST0545). The mater contains a gazetteer with 24 localities and the rete is of poor design. There are seven plates with badly engraved markings for various latitudes between 21° and 40°, three being unlabelled. On the back of the instrument is a sine quadrant and a double shadow square. A Persian inscription along the rim, referring to the legend of Jamshid, forms a chronogram and also gives the date as AH 1228 (1813 AD). Credit line: © National Maritime Museum, Greenwich, London, Gabb Collection Object: AST0580 Artist: unknown Date: 1813 Medium: brass Size: diameter: 60 mm Click here to buy a bespoke print of this image.