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Astronomical compendium compass

AST0415.2

Object connections:

Collection
Gallery locationNot on display

Object details:

Object ID AST0415.2
Description Compass for the astronomical compendium for latitude 48° North. The second section can be unscrewed to a reveal, in its underside, a horizontal dial set over a compass. The compass has a printed and painted compass card with an eight-point rose and all 32 points marked. A glass plate covers all and is held in place by the hour ring of the dial. Crossing the compass glass are curling supports that hold the shaped brass hinged gnomon, which folds flat when not in use.
Date made 17th century

Artist/Maker Unknown
Place made probably Nuremberg, Germany
Credit National Maritime Museum, Greenwich, London, Caird Collection
Materials brass; glass; ivory; card
Measurements Overall: 23 mm; Diameter: 42 mm
Parts
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