High-Rise Steel Frame Apartment Building, 1929-1930: Sections, 1:100

Black crayon on paper

Colored marker on paper

Black crayon on paper

Charcoal on paper

Ink on paper

Graphite on tan wove paper

Graphite on paper

Charcoal and black chalk with scratchwork on gray wove paper

Black and blue crayon on paper

Black and gray marker on paper

Black crayon on paper

Graphite on paper