Untitled (sketch of shipyard along the Weser River in Minden, Germany, left page); Untitled (portrait of the artist's older brother [Reinhold], right page)

Graphite on cream laid paper

Black marker and tape on paper

Blue marker on paper

Black marker on paper

Black crayon on paper

Graphite on paper

Black crayon on paper

Black ink on off-white wove paper

Black and red marker on paper

B/w photocopy, black marker, and adhesive on paper

Graphite on paper

Graphite and watercolor on paper