Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: First floor plan (1/4" = 1'-0")

Ink, gouache, and natural material on paper

Black ink and white gouache on darkened off-white wove paper

Watercolor over graphite on off-white illustration board

Black crayon on paper

Brown ink on white wove paper

Black crayon and ink on paper

Watercolor and graphite on cream wove paper

Black ink on off-white wove paper

Brown and ochre ink, varnished (?) in some areas, on handmade off-white Mexican bark paper

Graphite on paper

Charcoal on off-white laid paper

Graphite on off-white wove paper