F1283-2

Reverse of Horary quadrant Long Caption: This is a horary quadrant but unusually carries no conventional hour lines by which to tell the time. Instead, the front is marked with an astrolabe quadrant. A surveyors shadow square appears as a curved scale along the limb. Unusually for a horary quadrant, the equasion of time is set along the two sides of the instrument. It is signed 'Gab: Stokes Dublin fecit 1738. Credit line: © National Maritime Museum, Greenwich, London Object: NAV1055 Artist: Gabriel Stokes Date: 1738 Medium: brass Size: 2 mm x 424 mm x 301 mm; overall height with stand: 477 mm Click here to buy a bespoke print of this image.