Martigny (vignette); Print made by William Bernard Cooke; 1778-1855; British; after Joseph Mallord William Turner; 1775-1851; British; 1830; Etching and line engraving; engraver's proof on medium; slightly textured; cream wove paper with chine-coll? Sheet: 17 3/8 x 11 5/8 inches (44.1 x 29.5 cm); Frame: 10 x 5 5/8 inches (25.4 x 14.3 cm); Chine coll? 9 5/8 x 5 3/8 inches (24.4 x 13.7 cm); and Image: 2 1/2 x 3 inches (6.4 x 7.6 cm)