Office and Factory Buildings, Cali, Colombia, 1945: Office unit: details (3/8" and 1" = 1'-0")

Charcoal on paper

Graphite on paper

Black ink and graphite on off-white wove paper

Brown ink and green crayon on off-white wove paper, mounted to wove paper

Graphite on paper

Graphite on off-white wove paper

Graphite on paper

Charcoal on paper

Graphite on darkened off-white wove paper, mounted to cardboard

Charcoal and white and purple chalk on brown wove paper

Graphite on white wove paper

Black ink on tan wove paper (recto and verso)