F1388-1

Butterfield dial Long Caption: Butterfield dial for latitudes 40°-55° north. The compass has an eight-point rose with the cardinal and quadrantal points named in French and intermediate points marked by lines. North is offset 15° west to allow for magnetic variation. The latitude scale on the gnomon is adjustable for latitudes 40°-55°. The compass base is engraved with acanthus at the centre, while the remainder of the base and the back of the dial-plate is filled with a table of latitudes in two columns consisting of towns and cities in Europe. Credit line: © National Maritime Museum, Greenwich, London, Debreuil Collection Object: AST0257 Artist: Macquart Date: early to mid 18th century Medium: silver; glass; brass Size: 7 mm x 61 mm x 67 mm Click here to buy a bespoke print of this image.