200-inch telescope dome building--pouring concrete observing floor
1936 December 20
- Title
- 200-inch telescope dome building--pouring concrete observing floor
- Collection
- Caltech Images Collection
- Series
- Academic Divisions and Departments
- Sub-Series
- Astronomy (Astrophysics)
- Identifier
- 10.18.1-50
- Dates
- 1936 December 20
- Extents
- 1 photographs