Sea Turtle Cup, 1969, graphite on paper. 

Liquid Rock, 2004, acrylic and ink on paper. 

Chinese Figurine Cup, 1969, acrylic and graphite on lithograph proof. 

Frog Cups, 1967, acrylic, graphite and colored pencil on paper mounted on board. 

Specimen, 1964, graphite and colored pencil with adhesive tape on cream wove paper tipped to two-ply mat board. 

Untitled, 1992, acrylic and ink on paper.