Brass quadrant with 0-90° scale of 18-inch radius with second scale of 0- 96° divisions with stand, two optical sights and wooden case, by John Bird, London, dated 1771 and signed, 'W.L.'. Originally the property of the reverend William Ludlam, mathematican and fellow of St. Johns College, Cambridge.
Details
- Category:
- Astronomy
- Object Number:
- 1937-600
- Measurements:
-
overall: 920 x 360 x 720 mm
- type:
- quadrant - optical and instrument case
- credit:
- Cambridge Observatory