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

Black crayon on paper and mounted

Black marker on paper

Graphite on paper

Graphite on paper

Graphite on paper

Graphite on paper

Black crayon on paper

Black and green crayon on paper

Graphite on paper

Black and orange marker on paper

Colored marker on paper

Black crayon on paper