Portable Transit Instrument by Dollond
- maker:
- John Dollond
Portable transit instrument by Dollond, with a 2-inch objective lens and 30-inch focal length.
Details
- Category:
- Astronomy
- Object Number:
- 1939-390
- Measurements:
-
overall: 900 x 500 x 500 mm
- type:
- transit instrument
- credit:
- Meteorological Office