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

Charcoal on cream wove paper

Colored pencil on cream wove paper

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

Charcoal, oil stick, acrylic, and Liquid Paper on white wove paper

Red and white chalk, graphite, reddish-brown ink, and blue wash on tan paper

Pastel on cardboard?

Graphite and crayon on paper

Oil stick on waxed wove paper

Graphite on paper

Charcoal and black ink on cream laid paper

Graphite on cream wove paper, mounted on board

Watercolor and graphite on white wove paper