![](https://coimages.sciencemuseumgroup.org.uk/4/545/large_thumbnail_1878_0011__0008_.jpg)
Circular glass mirror (6-inch), aluminium coated with marked focal ratio of f1.
Details
- Category:
- Astronomy
- Object Number:
- 2001-676
- Measurements:
-
overall (estimate): 50 x 160 x 160 mm
- credit:
- University of Oxford (Dept of Physics)