Untitled (graphite transfer, left page); Untitled (sketch by Piene's daughter [Chloe] right page)

Green and olive crayon on paper

Graphite on cream wove paper

Black crayon on paper

Black crayon on paper

Paper

Colored marker on paper

Graphite and colored pencil on paper

Black marker and pen on paper

Watercolor, colored pencil, graphite, and pastel on off-white wove paper

Ink and applied type on paper

Graphite on paper

Ink and applied typescript on paper