Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Interior casework details, study - room #117: elevations, isometric, and sections (1 1/2" and 6" = 1'-0")

Graphite on cream wove paper; verso: black ink and graphite

Black ink on off-white wove paper

Watercolor on paper

Black colored pencil? on tan wove paper

Black and colored crayon on off-white wove paper

Graphite, colored ink, and collage element on paper

Watercolor over graphite on off-white wove paper

Black ink and wash on tan wove paper

Charcoal and graphite on white wove notebook paper

Watercolor and white gouache over graphite on buff laid paper

Graphite on off-white wove paper

Graphite on cream wove paper