Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Exterior door to roof terrace #308 and flashing details (3" =1"-0" and full size)

Graphite on off-white wove paper

Graphite and wax crayon on white wove translucent paper

Watercolor on heavy off-white wove paper

Watercolor and graphite on cream wove paper

Black felt-tipped pen on yellowed newsprint paper

Graphite on paper

Graphite wash, watercolor and black crayon on off-white wove paper

Pastel on brown wove paper

Charcoal on paper

Black and grey wash on prepared white wove paper

Transparent and opaque watercolor and graphite on heavy off-white wove paper

Graphite on buff wove paper