Pennsylvania Pavilion for World's Fair, New York, 1939: Hall of Progress, display case: plans and sections (1/4" and 3" = 1'-0" )

Red chalk on illustration board

Graphite on off-white wove paper

Watercolor and graphite on white wove paper

Black ink on off-white wove paper

Red ink, green fiber-tipped ink and watercolor on off-white wove paper

Graphite on off-white wove paper

Black ink, graphite, and yellow chalk on off-white wove paper; verso: black ink

Watercolor on off-white wove paper

Graphite on off-white wove paper

Graphite on paper

Gouache and black ink on buff wove paper

Graphite on off-white wove paper