Detail from the "Mass at Bolsena" by Raphael

Black, blue, red, and ochre chalk on buff modern laid paper

Graphite with touches of black ink and white chalk(?) on beige wove paper

Ink on paper

Black chalk and pink and white opaque watercolor on brown wove paper

Black ink and white gouache over graphite on brown paper

Black ink and blue wash over graphite on white paper

Paper

Graphite and green, yellow, and red wash on paper

Black ink and gray wash on cream wove paper

Red and white chalk on off-white wove paper prepared with beige ground

Black crayon on buff wove paper, darkened