Flight Drawing #11... Before Warm Grey and/Ultramarine1979 · Gray and ultramarine blue chalk, with graphite, on incised, white wove paper63.5 × 55.9 cm (25 × 22 1/16 in.)Art Institute of Chicago
Hidden Sounds 141978 · Incised pastel chalk on white wove paper53.8 × 47.4 cm (21 3/16 × 18 11/16 in.)Art Institute of Chicago
New York Sound Drawing #101978 · Red pastel, with graphite, on incised, white wove paper52.1 × 47 cm (20 9/16 × 18 9/16 in.)Art Institute of Chicago
New York Sound Drawing 21977 · Charcoal and pastel over incising on off-white wove paper78 × 69 cm (30 3/4 × 27 3/16 in.)Art Institute of Chicago
WattsOSPDPercussion Drawing 151977 · Pastel on incised paper22 1/8 x 22 1/8" (56.2 x 56.2 cm)Museum of Modern Art
Near Sounds -- Percussion Drawing 101977 · Pastel on incised paper22 1/8 x 22 1/8" (56.3 x 56.3 cm)Museum of Modern Art
Untitled from Clusters1976 · Etching from a portfolio of five etchings (three with aquatint), one aquatint, one drypoint with aquatint, and one engravingMuseum of Modern Art
WattsOSCClusters1976 · Portfolio of five etchings (three with aquatint), one aquatint, one drypoint with aquatint, and one engravingeach plate 7 1/8 x 7 1/8" (18.1 x 18.1 cm)Museum of Modern Art