Leopoldo Magno, Caesar I, from Triumphus Novem Saeculorum Imperii Romano Germanici Leopoldo Magno. Christoph Elias Heiss; German, 1660-1731. Date: 1696-1700. Dimensions: 339 x 234 mm (plate); 401 x 296 mm (sheet). Mezzotint on paper. Origin: Germany.