Pouring concrete slab of the observing floor of the 200-inch dome
1936 December 20
- Title
- Pouring concrete slab of the observing floor of the 200-inch dome
- Collection
- Caltech Images Collection
- Series
- Academic Divisions and Departments
- Sub-Series
- Astronomy (Astrophysics)
- Identifier
- 10.22.1-14
- Dates
- 1936 December 20
- Extents
- 1 photographs