Jack in the Box Restaurant, Elevation Sketch, 1967
Marker, ink, crayon, graphite, and wash on tracing paper
45.9 x 54.6 cm
The Archive of Bertrand Goldberg, gifted by his children through his estate, RX23664/62.72
Barrow, Heather and Lori Hanna Boyer. Bertrand Goldberg Collection Finding Aid. (The Art Institute of Chicago, 2007), p. 26.