Certificate for Wall Drawing #830 (Four Isometric Figures With Color Ink Washes Superimposed)

Black crayon on thin off-white wove paper

Black ink on tan wove paper

Colored crayon on brown wove paper

Oil on tracing paper

Watercolor and graphite on white wove paper

Gray pastel with incised lines in rows on white wove paper

Graphite and colored wax crayons with extensive stumping, erasure and working with a sharp tool, on off-white wove paper

Black crayon on paper

Graphite on off-white wove paper

Black ink on off-white wove paper

Black and red chalk on off-white wove paper

Graphite and ink on paper