Untitled (design for flower inflatable with bleed-through of previous page, left page); Untitled ("Enzian" flower designs, right page)

Graphite on paper

Colored marker and black pen on paper

Black crayon on paper

Colored and metallic marker on paper

Black pen and red pen on paper

Black and orange marker on paper

Graphite and colored crayon on off-white wove paper

Red, purple, and blue crayon ; black, blue and yellow crayon on paper

Charcoal on paper

Colored marker on paper

Charcoal and graphite on paper

Graphite and colored crayons on paper