Electric quartz-annealing furnace, without cover--close-up view
1928 September 10
- Title
- Electric quartz-annealing furnace, without cover--close-up view
- Collection
- Caltech Images Collection
- Series
- Academic Divisions and Departments
- Sub-Series
- Astronomy (Astrophysics)
- Identifier
- 10.22.01-2
- Dates
- 1928 September 10
- Extents
- 1 photographs (negative)
- Abstract
- External diameter, 68-inch. Fused quartz mirror development.