Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Northeast elevation (1/4" = 1'-0")

Black ink and charcoal on cream laid paper

Watercolor and oil on white wove paper

Cloth bound sketchbook

Black ink on cream wove paper

Black crayon and ink on paper

Black ink and graphite on off-white wove paper, mounted to cardboard

Graphite on off-white wove paper

Watercolor, white gouache and black ink on off-white wove card

Black ink on illustration board

Graphite on white wove translucent paper

Black ink on off-white wove paper

Charcoal on cream laid paper