Office and Factory Buildings, Cali, Colombia, 1945: Plot plan and elevation (1" =50')

Graphite on white wove paper

Casein, graphite and black ink on gessoed white wove paper (Fabriano)

Charcoal on paper

Graphite on paper

Black ink on off-white wove paper

Beeswax, graphite, detritus and debris on wove paper

Watercolor on cream wove paper

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

Graphite on off-white wove paper

Graphite on paper

Spiral bound sketchbook

Oil on paper