Bowl, Persia, Kashan (?), Late 12th or early 13th century, Fritware, painted over and underglaze. Musée Calouste Gulbenkian, Lisbonne. Bowl, Persia, Kashan (?), Late 12th or early 13th century, Fritware, painted over and underglaze. Musée Calouste Gulbenkian,...