13th century
Height 11.2cm, mouth diameter 4.6cm, body diameter 10.7cm, bottom diameter 7.8cm
Kosedo water bottles have been known since the early period to have a spout on the shoulder and a handle, but there is also a type of water bottle without a spout or handle, with the mouth rim partially bent outward to form a one-sided mouthpiece. This type was rare in the early period, but began to increase around the end of the Kamakura period. As already mentioned, the former type was used as eating and drinking vessels, but this type with a one-sided mouth rim may be better considered as an oil jug rather than a drinking vessel or a pitcher, considering its continuity with Muromachi period vessels.
It is made of grayish-white, rather coarse clay and is molded with rolled-up corded clay. The ash sleeve is unstable, almost monotone, and the glaze is markedly uneven. The other layers are also thin and peeling in places. This is one of the few examples of early katakuchi vases.
