There can be no certainty that this unusual jar is a product of Arita. The dark body and glaze as well as the range of colours used differ considerably from known Arita pieces. It is, however, almost certainly of mid-17th-century date, when no other known kiln area was producing such high-fired wares. Even the evident fact that it is slightly under-fired does not explain these differences. The style of the painting of the flowers, in particular, resembles that on an Early Enamelled Ware bottle in the Idemitsu Museum (Idemitsu, 1990, pl. 674).