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

Typed colon marks on black carbon paper

Graphite on off-white wove paper (recto and verso)

Graphite and ink on translucent wove paper

Graphite on paper

Black chalk on off-white wove paper

Pastel and graphite on layered cream modern laid paper

Colored crayons on paper

Oil on off-white laid paper

Black ink and colored chalk on thin buff wove paper

Charcoal on blue laid paper

Brown ink and wash over graphite on off-white wove paper; verso: brown ink

Leather bound sketchbook