Studies of Quarry Workers with Ropes (recto and verso)

Graphite on paper

Colored crayon on paper

Watercolor over graphite on off-white wove paper

Graphite on paper

Incised line and Aquarelle on white wove paper

Watercolor on off-white wove paper

Black ink and charcoal on cream laid paper

Graphite on paper

Black chalk and charcoal on off-white laid paper

Watercolor and graphite on white wove paper

Black ink and graphite on graph paper

Black and white chalk on gray-brown laid paper