Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Elevator cab: plan and elevations (1 1/2" = 1'-0")

Black ink on off-white wove paper

Collage (paper and metallic foil) on handmade paper

Graphite on off-white wove paper

Graphite on paper

Graphite on paper

Mixed media on paper

Charcoal on off-white laid paper

Charcoal and graphite on off-white laid paper

Graphite on off-white wove paper

Black chalk and charcoal on off-white laid paper

Graphite on off-white wove paper (recto and verso)

Graphite on graph paper