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

Charcoal on off-white laid paper

Black ball-point ink on olive green modern laid paper

Black ink and gray wash on cream laid paper

Graphite on cream wove paper

Watercolor on off-white wove paper

Charcoal on off-white wove paper; verso: charcoal and graphite on paper

Ink on paper

Watercolor over graphite on cream wove paper

Black crayon on envelope

Transparent and opaque watercolor on white wove paper

Graphite on off-white wove paper

Graphite on paper