- Medium
- Stain on the inside back cover of the box housing a portfolio of seventy-six mixed media stains (including cover)
- Dimensions
- composition (irreg.): 1 1/4 × 7/8" (3.2 × 2.2 cm); portfolio (box, closed): 12 1/2 × 11 1/2 × 1 5/8" (31.8 × 29.2 × 4.1 cm); portfolio (box, open): 12 1/2 × 24 × 1 1/2" (31.8 × 61 × 3.8 cm)