Bowl with In-Curving Rim and Partridge-Feather Mottles

Yaozhou ware: light gray stoneware with celadon glaze over molded decoration, the exterior with carved vertical lines suggesting petals. From the Yaozhou kilns near Tongchuan, Shaanxi province.

Jizhou ware: light gray stoneware with dark brown and transparent amber glazes. From the kilns at Yonghe, Ji'an, Jiangxi province.

Qingbai ware: molded porcelain with pale bluish glaze, the unglazed rim originally bound with metal

Splashed Jun ware: coarse gray stoneware with robin's-egg blue glaze enlivened with purple suffusions from copper filings

Jian ware: dark gray stoneware with dark brown glaze, the markings in iron oxide. From the kilns at Shuiji, Jianyang county, Fujian province.

Cizhou-type cut-glaze ware: light gray stoneware with dark brown glaze, the decoration cut into the glaze before firing to reveal the light gray body, the revealed body clay dressed with white glaze in localized areas

Ganzhou ware: light gray stoneware, the unglazed exterior with combed and applique decoration, the interior with russet-surfaced dark brown glaze. From the kilns at Qili, Ganzhou, Jiangxi province

Longquan celadon ware: light gray stoneware with bluish green celadon glaze over applique decoration

Cizhou ware: light gray stoneware with decoration painted in iron-brown slip on a white slip ground under a clear glaze

Probably Cizhou ware: off-white stoneware with brown-slip splashes on a white-slip ground

Splashed Jun ware: light gray stoneware with robin's-egg blue glaze enlivened with purple suffusions from copper filings

Qingbai-type ware: molded porcelain with virtually colorless glaze