 |
| I. M. Pei & Partners,
National Gallery of Art East Building Design Team. Working studies, c. September 1968. Pencil on tracing paper |
| Copyright © National Gallery of Art, Washington D.C. |
|
|
| I. M. Pei & Partners,
National Gallery of Art East Building Design Team. Working studies, c. September 1968. Pencil on tracing paper |
| Copyright © National Gallery of Art, Washington D.C. |