Untitled (adhered color photocopy of Halde Rheinpreußen, left page); Untitled (adhered color photocopy of Halde Rheinpreußen, right page)

Ink on paper

Purple-gray crayon on paper

Graphite on paper

Colored marker on paper

Graphite on paper

Colored marker on paper

Graphite on paper

Orange, purple, and green crayon on paper

Graphite on paper

Graphite on paper

Graphite on paper

Black ink and watercolor on cream laid paper