Study of a skyscraper: elevations and plan; verso: Building design

Graphite on paper

Colored marker on paper

Charcoal on cream laid paper

Black crayon on paper and mounted

Red and black marker on paper

Graphite on paper and mounted

Opaque watercolor on paper

Graphite and purple crayon on paper

Graphite and blue crayon on paper

Graphite with red, blue, and yellow crayon ; graphite and blue crayon on paper

Purple and black crayon on paper

Graphite and green crayon on paper