Head of a bald, sinewy man looking downwards. Artist: After Leonardo da Vinci (Italian, Vinci 1452-1519 Amboise). Dimensions: Sheet: 2 5/8 ? 1 3/4 in. (6.7 ? 4.4 cm) cut 1mm into image at top and bottom. Etcher: Wenceslaus Hollar (Bohemian, Prague 16