Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Study and bedroom chimney details (1/4" = 1'0")

Black ink on off-white wove paper

Sketchbook with cloth-covered cardboard covers

Black ink on cream, machine made, wove paper

Graphite on off-white wove paper

Watercolor, white gouache and chalk over graphite on off-white wove paper

Graphite and wax crayon on glossy wove paper

Graphite on off-white wove paper

Black and white chalk on darkened buff laid paper

Watercolor on beige Asian paper mounted to white paper mounted to canvas

Black ink on gray-green laid paper

Ink on paper

Black ink and white-gray gouache on grayish-white textured wove paper