Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Casework revisions - rooms #220 and #216: plan, section, and elevation (1/2", 3/4", 1 1/2" and 6" = 1'-0")

Charcoal with extensive stumping on blue modern laid paper

Black ink on cream laid paper

Black ink on thin cream wove paper

Graphite on off-white wove paper

Graphite and gesso on paper

Graphite and ink on paper

Watercolor over graphite on off-white wove paper

Graphite on off-white wove paper

Graphite on paper

Brown ink on off-white wove paper

Black, brown, and blue crayon ; black crayon on paper

Watercolor over graphite on off-white wove paper