At the Cassegrain Focus
1934
- Title
- At the Cassegrain Focus
- Collection
- Caltech Images Collection
- Series
- Individuals
- Identifier
- RWP2.3-4
- Dates
- 1934
- Extents
- 1 photographs (negative)
- Abstract
- Perspective drawing with observer on elevator, aluminizing chamber below. Pencil on paper, 8 x 12 inches, mounted on board, 9 x 13 inches. Signed R.W.P., dated 1934. Palomar. Porter Papers.