Building Addition and Alterations, Philadelphia, 1944-1946: Elevation and typical wall section (1/8" and 3/4" = 1'-0")

Graphite on paper

Graphite on off-white wove paper

Watercolor and graphite on layered off-white wove paper

Watercolor and graphite on off-white wove paper

Charcoal on paper

Charcoal on blue laid paper

Graphite and charcoal on paper

Graphite on off-white laid paper

Graphite on gray-green wove paper

Graphite on paper

Graphite on paper

Graphite on off-white wove paper