14th century
Height 10.2 cm, mouth diameter 3.0 cm, body diameter 4.4 cm, bottom diameter 3.5 cm
 This is the simplest of the iron-glazed Buddhist vases from the peak of the Koseto period. The body is oval in shape with a single chink line on the upper half. The iron glaze is a dull brown color with a thin glaze layer, and the lower half of the body is curved with many irregularities.