Pennsylvania Pavilion for World's Fair, New York, 1939: Suspended aluminum bridge: plan, elevations, section, (1/8" = 1'-0")

Opaque watercolor and graphite on paper-faced board

Black ink on heavy off-white wove paper

Red chalk and black crayon over graphite on off-white wove paper

Graphite on off-white wove paper

Black ink on off-white wove paper

Graphite on off-white wove paper

Ink on paper

Watercolor over graphite on off-white wove paper

Ink on paper

Charcoal, oil stick, acrylic, and Liquid Paper on white wove paper

Black and blue ink, graphite, and casein paint on white wove paper

Blue tempera on acetate