Building Addition and Alterations, Philadelphia, 1944-1946: Scheme A: plan and elevation

Black crayon and ink ; black crayon on paper

Watercolor, graphite wash and black crayon on off-white wove paper

Black ink on off-white wove paper

Watercolor and black chalk (?) on cardboard

Black ink, graphite, and red and blue pencil on off-white wove paper

Black and blue crayon ; black and green crayon on paper

Graphite on off-white wove paper mounted on buff paper

Silverpoint on acrylic gesso ground on Strathmore paper

Watercolor on off-white wove paper

Black and white conté crayon on pale green wove paper

Black ink on off-white wove paper

Graphite on tan wove paper; verso: graphite on tan wove paper