Untitled (adhered photcopy of design for Glasplastik, left page); Untitled (adhered photcopy of design for Meeresplastik, right page)

Graphite on paper

Oil and black ink on buff cardboard

Brown ink on off-white wove paper

Black and white chalk with touches of red chalk on blue antique laid paper; verso: red chalk, laid down on cream antique laid paper

Graphite on thin ivory wove tracing paper

Watercolor and gouache, graphite, and white chalk on cream wove paper, darkened

Graphite on paper

charcoal, graphite, black chalk, metallic paint, watercolor, and gouache on off-white card, folded

Black chalk

Black wash and white gouache over graphite on brown paper

Colored crayons on paper