Portrait of Casimir le Conte. Charles Meryon (French, 1821-1868); after Gustave Clarence Rodolphe Boulanger (French, 1824-1888). Date: 1856. Dimensions: 337 ? 256 mm (image); 337 ? 256 mm (plate); 448 ? 347 mm (sheet). Etching on ivory laid paper. Or