1. Naumachia, 2. Colosseum, Colosseum in Rome and Naumachie, signed: Graesel (lith.), Steindr., v, R. Weber, Tab. XXIX, Graesel (lith.), Weber, Rudolf (Steindr.), Franz Heinrich K?hler: Urbs Roma: Ansichten der Tempel, Pal?ste, Theater, Amphitheater,