Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Wall sections (1 1/2" = 1'-0")

Ink and brown pencil on white wove paper

Charcoal on blue laid paper

Graphite on paper

Charcoal on yellow wove paper

Graphite on off-white wove paper

Graphite on paper

Black ink on off-white handmade rice paper

Graphite on off-white wove paper

Graphite on paper

Colored pencil and graphite on cream wove paper

Graphite, black ink, and blue ball-point ink on off-white wove graph paper

Graphite on off-white wove paper