- Medium
- Charcoal and white chalk, with gray pastel and stumping, on gray laid paper with blue fibers, laid down on wood pulp board
- Dimensions
- Primary support: 50 × 72.2 cm (19 11/16 × 28 7/16 in.); Secondary support: 52.5 × 72.5 cm (20 11/16 × 28 9/16 in.)