Untitled (stamps from Spain, left page); Untitled (pasted architectural plan for Palais des Beaux Arts de Bruxelles)

Colored crayons on paper

Black crayon on paper

Charcoal on paper

Graphite on paper

Watercolor with black ink on paper

Black marker on paper

Graphite on tan wove paper

Black and red marker on paper

Graphite on paper

Black and metallic marker on paper

Colored marker on paper

Graphite on envelope