Pennsylvania Pavilion for World's Fair, New York, 1939: Hall of Progress: plan, (1/4" = 1'-0")

Black ink and black crayon over graphite on off-white laid paper

Black ink with brown and black chalk on cream laid paper

Graphite on paper

Graphite on paper

Charcoal on layered cream modern laid paper

Black ink on off-white wove paper

Watercolor over graphite on heavy off-white wove paper

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

Graphite on paper

Watercolor over graphite on off-white wove paper

Charcoal and black ink on cream laid paper

Graphite, black ink and blue ball point pen on commercial blue-lined yellow paper.