Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Exterior flood lights (1 1/2" = 1'-0" and full size)

Black ink on off-white wove paper

Blue felt-tip marker on thin off-white wove paper

Colored inks over graphite on off-white wove paper

Watercolor on off-white wove paper

Black ink, graphite, and yellow chalk on off-white wove paper

Graphite on off-white wove paper

Black crayon on paper

Graphite on off-white wove paper

Black, white, and gray paint and orange crayon on cream wove paper

Graphite on heavy off-white wove paper

Black ink and watercolor over graphite on cream wove paper; album leaf: watercolor and graphite on cream wove paper

Watercolor over graphite on off-white wove paper, mounted to off-white card