200-inch mirror disk
- Title
- 200-inch mirror disk
- Collection
- Caltech Images Collection
- Series
- Academic Divisions and Departments
- Sub-Series
- Astronomy (Astrophysics)
- Identifier
- 10.19-2
- Extents
- 1 photographs (negative)
- Abstract
- On table of the optical machine in the shop at Pasadena. Approximately three years were required to grind, polish and finish this mirror. Palomar.