Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Location of reading lights in study: elevation (1/2" = 1'-0")

Graphite on off-white wove paper

Sepia ink and acrylic varnish on off-white wove paper mounted on aluminum

Graphite on paper

Black ink and gray wash over graphite on off-white wove paper

Watercolor on cream wove paper

Watercolor on gampi paper

Charcoal on heavy off-white wove paper, mounted to another sheet

Graphite on paper

Black crayon on paper

Graphite on cream wove paper

Pastel and black chalk on layered off-white wove paper

Graphite, ink, and collage elements on paper