Mer de Glace; Valley of Chamouni; Savoy; Etched and engraved by Joseph Mallord William Turner; 1775-1851; British; after Joseph Mallord William Turner; 1775-1851; British; 1812; Etching and mezzotint; printed in brown ink Engraver's proof (c) on medium; slightly textured; cream wove paper; Sheet: 11 x 16 1/4 inches (27.9 x 41.3 cm); Plate: 8 5/8 x 11 5/8 inches (21.9 x 29.5 cm); and Image: 7 x 10 1/8 inches (17.8 x 25.7 cm); Alps; Chamonix-Mont-Blanc; France; Haute-Savoie; Mer de Glace (glacier); Mont Blanc; Rh鬾e-Alpes