Mean-time sun-dial invented and patented by Major-General J. R. Oliver, patent No 1660, made by Negretti & Zambra, London, 1892-1897. The instrument reads mean-time by the position of the edge of the shadow cast within an equatorial circular line
Details
- Category:
- Time Measurement
- Object Number:
- 1897-29
- Materials:
- iron, steel (metal), brass (copper, zinc alloy) and metal (unknown)
- Measurements:
-
overall: 330 mm x 440 mm x 280 mm,
- type:
- sundial
- credit:
- Major-General J. R. Oliver
