Pennsylvania Pavilion for World's Fair, New York, 1939: Suspended aluminum bridge: plan, elevations, section, (1/8" = 1'-0")

Black crayon over graphite on off-white wove paper

Watercolor over graphite on off-white wove paper

Graphite on off-white wove paper

Crayon and ink on paper

Pastel on cardboard?

Watercolor over graphite on off-white wove paper, mounted to off-white card

Oil on white primed paper

Pen and black ink on folded cream colored paper

Graphite on paper

Red chalk on gray wove paper

Black ink on tan wove paper (recto and verso)

Ink on paper