546 UNTITLED 11.5 x 8 in (29.2 x 20.3 cm) Chemical alteration on paper 1993 548 UNTITLED 15 x 22 in (38.1 x 55.9 cm) Acrylic on paper 1993 547 UNTITLED 10.7 x 8.2 in (27.2 x 20.8 cm) Chemical alteration on paper 1993 438 439