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

Charcoal on white paper

Graphite and graphite wash on cream wove paper

Graphite on paper

Watercolor on ruled off-white wove paper

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

Graphite on green paper mounted on card

Graphite on off-white wove paper

Graphite on paper

Black ink on off-white wove paper

Black chalk over a blue ink grid on cream wove paper

Graphite on paper

Charcoal on off-white wove paper