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

Crayon on paper

Black crayon on off-white wove paper

Blue ballpoint ink on pink wove paper

Graphite on cream laid paper

Charcoal on blue laid paper

Graphite on off-white laid paper, squared

Watercolor over graphite on off-white wove paper

Watercolor over graphite on off-white wove paper

Graphite on paper

Charcoal on off-white wove paper

Graphite on off-white wove paper

Black ink and colored chalk on translucent buff wove paper