Phil, 1969. Synthetic polymer on canvas, 108 x 84 inches. Collection of the Whitney Museum of American Art, New York.

Phil/2464, 1973. Ink and pencil on paper, 22 x 17 inches. Collection of the Whitney Museum of American Art, New York.

Drawing for Phil/Rubber Stamp, 1976. Ink on paper, 7-5/8 x 6-1/2 inches. Courtesy The Pace Gallery, New York.

Phil/Watercolor, 1977. Watercolor and acrylic on paper, 58 x 40 inches. Courtesy The Pace Gallery, New York.

Phil/Fingerprint I, 1978. Stamp-pad ink and pencil on paper, 29-3/4 x 22-1/4 inches. Courtesy The Pace Gallery, New York.

Phil/Fingerprint II, 1978. Stamp-pad ink and pencil on paper, 29-3/4 x 22-1/4 inches. Collection of the Whitney Museum of American Art, New York.