Fresco Frieze and Ceiling, Apartment of Clement VII, Castel Sant'Angelo, Rome

Acrylic paint and wash on off-white wove paper

Black and blue crayon ; black and green crayon on paper

Watercolor on ruled off-white wove paper

Watercolor and gouache over graphite on off-white cardboard

Charcoal on off-white wove paper

Black ink, graphite, and yellow chalk on thin buff wove paper

Graphite on paper

Graphite on off-white wove paper; verso: charcoal

Watercolor over graphite on heavy off-white wove paper

Graphite on paper

Graphite on off-white wove paper

Red ink (printed and drawn) and graphite on Kraft paper