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

Tempera on acetate over brown and green tissue paper collage elements, and black ink on Japanese paper

Graphite and watercolor on off-white wove paper

Black ink, charcoal, watercolor, and watercolor pencil on cream laid paper, edges taped

Black crayon on off-white wove paper

Black ink and blue-gray watercolor on cream wove paper (recto and verso)

Stamped ink on newspaper

Black ink on off-white wove paper

Watercolor, metallic paint and black ink over graphite on cream wove paper; album leaf: graphite

Graphite and gray wash on off-white laid paper

Black ink on off-white wove paper

Black ink on off-white wove paper

Graphite and blue crayon ; graphite and yellow crayon on paper