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

Graphite on off-white wove paper

Watercolor over graphite on white wove paper

Ink, colored crayon, watercolor, and graphite traces on off-white laid paper

Black ink on off-white wove paper

Black felt-tipped pen on off-white wove paper

Black ink and charcoal on cream laid paper

Graphite on blue-gray laid paper

Charcoal and graphite on white wove paper

Graphite on paper

Black ink and black crayon on off-white laid paper

Graphite on paper

Watercolor over graphite on off-white illustration board