Drawing on Smithsonian Institution stationery, 1967. (2)
Ink and colored pencil on paper, 10 ½ x 8 in. Smithsonian American Art Museum, Washington, DC; Gift of the artist

A way of reasoning on paper
Ink and colored pencil on paper, 10 ½ x 8 in. Smithsonian American Art Museum, Washington, DC; Gift of the artist