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

Charcoal and black ink on cream laid paper

Colored marker on paper

Black crayon on paper

Colored marker on paper

Black crayon or charcoal on paper

Black marker on paper

Graphite on paper

Graphite on paper

Black and red marker on paper

Watercolor, over graphite, and ink on gray wove paper

Graphite on off-white wove paper

Black ink on white laid paper