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

Colored marker and watercolor on paper

Black ink on paper

Colored marker and black pen on paper

Gouache on brown wove paper

Graphite on paper

Orange paper with gold flecks

Graphite on paper

Graphite and blue crayon on paper

Charcoal on paper

Blue pen on paper

Graphite on paper

Graphite on paper