Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Connector enclosures, ground and first floors: details (1/2" = 1'0")

Graphite on buff wove paper

Graphite and orange chalk on blue-green laid paper

Black ink on off-white wove paper

Crayon on paper

Graphite on off-white wove paper

Graphite on off-white wove paper

Graphite on paper

Graphite on off-white wove paper

Graphite on ruled cream wove paper

Graphite on ivory wove paper

Graphite on paper

Black ink on tan wove paper (recto and verso)