Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Interior elevations (1/4" = 1'-0")

Transparent and opaque watercolor on white wove paper

Graphite on off-white card

Graphite on off-white laid paper

Black crayon on off-white wove paper

Charcoal on cream laid paper

Watercolor over graphite on off-white wove paper

Black ink on off-white wove paper

Graphite on off-white card

Watercolor over graphite on off-white wove paper

Watercolor on heavy off-white wove paper

Black gouache and graphite on two sheets of drafting film, joined

Blue and black ink and blue ball point pen on onionskin