WattsOSHIHeadland IV1963 · EtchingSheet (Irregular): 28 × 22 1/2 in. (71.1 × 57.2 cm) Plate: 14 13/16 × 14 13/16 in. (37.6 × 37.6 cm)Whitney Museum of American Art
Headland1959 · Etching on cream wove paperPlate: 42.6 × 47.4 cm (16 13/16 × 18 11/16 in.); Sheet: 45.5 × 56.4 cm (17 15/16 × 22 1/4 in.)Art Institute of Chicago