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

Graphite on blue wove paper

Graphite with scratchwork on white scratchboard

Graphite on heavy cream wove paper

Watercolor and white gouache over graphite on buff laid paper

Charcoal with erasure and stumping on off-white wove paper

Oil on white prepared paper

Graphite and colored pencil on cream laid paper

Graphite on off-white wove paper

Pastel over traces of charcoal on gray wove paper

Watercolor and gouache over graphite on off-white wove paper

Black ink over graphite on off-white wove paper

Brown-black fiber-tip ink over graphite on cream wove paper