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

Ink on paper

Charcoal on tan wove paper, squared

Graphite, black ball-point ink, and correction fluid on white wove paper

Graphite on paper

Black ink and graphite on off-white wove paper

Transparent and opaque watercolor over graphite on cream moderately textured wove paper

Graphite on paper

Graphite on cream card

Charcoal on cream laid paper

Black ink and colored chalk on thin buff wove paper

Graphite on off-white wove paper

Graphite on tracing paper