Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Connectors enclosure detail (full size)

Black ink on translucent buff wove paper

Watercolor on ruled off-white wove paper

Watercolor on off-white wove paper?

Graphite on green wove paper, discolored

Charcoal on paper

Crayon, gouache (?), watercolor and graphite (?) on white wove paper

Watercolor, masking tape and graphite on off-white wove paper

Graphite and colored wax crayons with stumping on off-white wove paper edged with lavender paper on left and right sides

Black crayon on thin brown wove paper

Red, brown, black and white conté crayon on gray wove paper

Opaque watercolor and pastel on thick white wove paper

Watercolor on paper