Bottom ring of 200-inch telescope tube on boring mill. Drilling holes in bottom faces.
1937 February 8
- Title
- Bottom ring of 200-inch telescope tube on boring mill. Drilling holes in bottom faces.
- Collection
- Caltech Photographs
- Series
- Photographs of Academic Divisions and Departments
- Sub-Series
- Astronomy (Astrophysics)
- Dates
- 1937 February 8
- Extents
- 1 photographs
- Abstract
- Work was done at Westinghouse Electric Plant.