- Medium
- a) pen and black ink on plastic film adhered to yellow masking paper
b) offset lithograph on plastic film adhered to yellow masking paper
- Dimensions
- sheet (a, irreg.): 26 × 33.1 cm (10 1/4 × 13 1/16 in.)
sheet (b, irreg.): 26.4 × 29.5 cm (10 3/8 × 11 5/8 in.)