The square rigged boat in this dish is an example of a rarer type of boat on Iznik vessels. In contrast to the normal galleasses, this is an ocean-going vessel. It has an unusually well-defined high forecastle and stern, together with what appears to be the open housing for the cannon. For three other examples please see Nurhan Atasoy and Julian Raby: Iznik, the Pottery of Ottoman Turkey, London, 1989, nos.643-645, pp.280-281). The two dishes with the clearest drawn vessels of this form, each with similar superstructure on the boats, are in the David Collection (Kjeld von Folsach: Art from the World of Islam in the David Collection, Copenhagen, 2001, no.175, p.192), and in the Victoria and Albert Museum (Turkish Pottery, London, 1955, pl.27).