Untitled (bleed-through of previous page and color transfer, left page); Untitled (pavillion design for Bonn competition and color transfer, right page)

Pastel on beige paper mounted to illustration board

Ink on paper

Black ink on off-white wove paper

Watercolor over graphite on heavy cardboard, waxed

Watercolor and white gouache on off-white wove paper

Colored marker on paper

Black and red marker on paper

Prepared black chalk on off-white modern laid paper

Gouache on acetate film affixed to cardboard

Graphite and purple crayon on paper with torn edges

Watercolor on heavy off-white wove paper

B/w photocopy on red and white paper and adhesive on sketchbook paper