Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Section through pool wing (1 1/2" = 1'-0")

Graphite on heavy off-white wove paper

Black ink and graphite on off-white wove paper

Crayon on paper

Oil on white primed paper

Watercolor over graphite on off-white wove paper

Graphite on off-white wove paper

Charcoal on off-white laid paper

Graphite and white gouache on blue laid paper

Graphite on paper

Watercolor and graphite on layered off-white wove paper

Collage of cut printed and colored papers on wove paper mounted to black wove paper; verso: collage of cut and printed colored papers on black wove paper

Graphite on off-white wove paper