Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: First floor plan (1/4" = 1'-0")

Graphite on paper

Charcoal on off-white laid paper

Wax crayon over blue/gray wash on cream wove paper

Black ink on off-white wove paper

Graphite on darkened off-white wove paper

Graphite on paper

Graphite and charcoal on off-white wove paper

Graphite on paper

Watercolor over graphite on off-white wove paper

Black ink and white gouache over graphite on off-white wove paper

Watercolor on cream card

Opaque watercolor and black ink on off-white wove paper, framing corners in graphite