Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Air conditioning units: plans, elevation, sections (1/4" and 3/4" = 1'-0")

Graphite on cream wove paper

Graphite on off-white wove paper

Gouache and collage on off-white wove paper

Graphite on paper

Watercolor and gouache on blue wove paper

Graphite on off-white wove paper

Ink over bleached gelatin silver print

Charcoal with extensive stumping on blue modern laid paper

Gouache, graphite and watercolor on off-white Japanese paper

Graphite on cream wove paper

Graphite on tan wove paper

Graphite on paper