Frank Residence, Pittsburgh, Pennsylvania, 1939-1940: Pipe railing details (1/4" , 1/2" = 1'-0" and full size)

Graphite on paper

Crayon on paper

Graphite on off-white wove paper

Watercolor and graphite on white wove paper

Oil and crayon on wove paper

Acrylic on off-white wove paper

Charcoal on off-white laid paper

Watercolor over graphite on off-white wove paper, mounted to off-white card

Gray pastel with incised lines on white wove paper

Ink and brown pencil on white wove paper

Watercolor and brown ink on off-white wove paper

Graphite on buff wove paper