






Gunter quadrant with lead plumb bob made by Walter Hayes, Moorfields, London, 1648-1687. Signed with the monogram of Walter Hayes.
Gunter quadrants are mathematical instruments that were used for basic astronomical calculation and time-telling. This quadrant has a scale for measuring degrees of altitude and Gunter’s trignonometric scale for making calculations. It has a volvelle on the reverse consisting of a planispheric nocturnal.
Details
- Category:
- Astronomy
- Object Number:
- 1911-250
- Measurements:
-
overall: 5 x 125 x 125 mm
- type:
- gunter quadrant
- taxonomy:
-
- furnishing and equipment
- measuring device - instrument
- timepiece
- furnishing and equipment
- measuring device - instrument
- timepiece
- horary quadrant
- credit:
- Mr W. Rayson