With the advent of punch'ong (literally "powder green") -- a greyish stoneware brushed with white slip -- a vigorous and robust new era of ceramic design was ushered in by the early Choson potters. This flat-sided bottle is decorated on one side with a stylized lotus blossom and on the other with an exuberant design of a large bird, perhaps a phoenix, and five smaller birds. This bird design is unique among punch'ong flasks. Bold and asymmetrical, the designs indicate the Choson potter's preference for spontaneous and freehand artistic effects which have been greatly admired in both Japan and the West in this century.

Decoration characterized by sgraffiato and brushed slip is associated with kilns in Cholla province in the southwest. On this flask the design of birds is incised but that of the lotus is deeply carved, revealing the dark clay below, and giving the appearance of raised, volumetric modeling. It is typical of Choson stoneware that the coarse clay body is heavily potted, the white slip is roughly brushed over the entire surface, and the glaze is thin and transparent, with a faint greenish caste.