Heysham and Cumberland Mountain, W. R. Smith, active 1819-1851, after Joseph Mallord William Turner, 1775-1851, British, 1818-1823, Line engraving and etching, engraver's proof on moderately thick, moderately textured, cream, wove paper, with cream, chine colle, Sheet: 13 1/4 × 19 5/8 inches (33.7 × 49.8 cm), Plate: 10 15/16 × 16 15/16 inches (27.8 × 43 cm), Chine collé: 10 7/8 × 16 13/16 inches (27.6 × 42.7 cm), and Image: 7 1/2 × 10 3/4 inches (19.1 × 27.3 cm)