Mies van der Rohe, Ludwig. IIT Master Plan, Chicago, IL (Campus, aerial perspective, preliminary version), c. 1939-40. Pencil, conte crayon on illustration board, 39 15/16 x 51" (101.5 x 129.5 cm). Mies van der Rohe Archive, gift of the architect, 719.1963. (Photo: MoMA)