Northwest Tower, Chicago, Illinois, Perspective1925 · Graphite on tracing paper65.6 × 44 cm (25 13/16 × 17 5/16 in.)Art Institute of Chicago
Lake Forest High School, Lake County, Illinois, Elevation1925 · Graphite and colored pencil on tracing paperApprox.: 28 × 48 cm (11 1/16 × 18 15/16 in.)Art Institute of Chicago