Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Interior elevations and radiator grille detail (1/4" = 1'-0" and full size)

Mixed media on paper

Graphite on paper

Black crayon on paper

Opaque and transparent watercolor on white wove paper

Graphite on thin off-white wove paper

Black ink and colored chalk on off-white wove paper; verso: black ink

Black and colored crayon on off-white wove paper

Oil on tracing paper

Mixed media on paper

Collage with watercolor, distemper, graphite and paper on brown wove paper

Charcoal on cream laid paper

Black ink and graphite on off-white wove paper