Grinding machines
1938 February 19
- Title
- Grinding machines
- Collection
- Caltech Images Collection
- Series
- Academic Divisions and Departments
- Sub-Series
- Astronomy (Astrophysics)
- Identifier
- 10.19-28
- Dates
- 1938 February 19
- Extents
- 1 photographs (negative)
- Abstract
- 200-inch machine is in the upper right corner; 120-inch machine is on the left. Palomar.