Untitled (adhered sketches of light sculptures, left page); Untitled (adhered sketches of light sculptures from 1972, right page)

Graphite on blue-flecked wove paper

Brown marker on paper

Black ink on white wove paper

Black ink on off-white illustration board

Graphite and crayon on cream modern laid paper

Black and red marker and black pen on paper

Black ink on off-white wove paper

Graphite on heavy weight, white card stock (Strathmore Bristol board)

Graphite on off-white wove paper

Graphite and colored pencils on paper

Graphite on white wove paper

Black ink over charcoal on off-white wove paper