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

Watercolor and white gouache on blue wove paper, discolored

Graphite on paper

Graphite on paper

Transparent and opaque watercolor on off-white wove paper

Graphite on off-white wove paper

Graphite on paper

Oil on tracing paper

Black crayon on paper

Black ink and watercolor pencil on beige wove paper

Graphite on paper

Black ink and gray wash on cream laid paper

Graphite on off-white wove paper