- Medium
- graphite, charcoal, pastel, wax crayon, printed map, and technical data, on two sheets of paper in two parts
- Dimensions
- sheet (top panel): 37.8 x 243.3 cm (14 7/8 x 95 13/16 in.)
sheet (bottom panel): 106.5 x 243.4 cm (41 15/16 x 95 13/16 in.)
overall size (for both panels): 147 x 244 cm (57 7/8 x 96 1/16 in.)