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

Black wash on tan wove paper

Graphite on off-white wove paper

Graphite on buff wove paper

Mixed media on paper

Black ink and charcoal on cream laid paper

Graphite on cream wove paper

Watercolor over graphite on off-white wove paper

Black crayon on paper

Watercolor and gouache on off-white wove paper

Graphite, black and red felt-tipped pen on off-white wove paper

Black chalk on off-white wove paper

Watercolor and white gouache on rough brown wove paper