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

Graphite on paper; colored crayon on paper

Graphite and black crayon on off-white wove paper; verso: black crayon

Graphite on paper

Red marker, watercolor, and graphite on paper

Graphite on paper envelope

Graphite and watercolor on paper

Graphite on paper

Watercolor and black ink on paper

Black crayon on paper

Graphite on paper

Black crayon or charcoal on paper

Graphite on paper