Untitled (drawing by Piene's daughter, left page); Untitled (bleed-through of following page with title for drawing, right page)

Graphite on paper

Ink and graphite on paper

Colored crayons on paper and mounted

Black and colored crayon on off-white wove paper mounted to cream wove paper

Colored marker on paper and pigment on canvas with adherent

Colored marker on paper

Charcoal on brown laid paper

Graphite and ink on paper

Colored marker and black pen on paper

Gouache on gray-green laid paper

Black marker and tape on paper

Purple crayon on paper