Building Addition and Alterations, Philadelphia, 1944-1946: Scheme 3: floor plans and section (1/32" = 1'-0")

Black and red fiber-tip pen and blue ink on spiral notebook paper

Graphite on paper

Graphite on prepared board

Graphite on off-white wove paper

Watercolor and white gouache over graphite on off-white wove paper

Graphite on paper

Charcoal on blue laid paper

Graphite on paper

Watercolor and charcoal on off-white wove paper

Paper collage and gouache

Black ink and white chalk on beige wove paper

Graphite on paper