National Opera House, Madrid, Spain, Main Floor Level
Bertrand Goldberg American, 1913–1997- Date
- 1964
- Medium
- Graphite on vellum
- Dimensions
- 55.8 × 86.5 cm (22 × 34 in.)
- Department
- Architecture and Design
- Credit line
- The Archive of Bertrand Goldberg, gifted by his children through his estate