probably 12th century
Diam. 11.4 cm (4 1/2 in.)
Longquan celadon ware: molded light gray stoneware with grayish olive celadon glaze
12th-13th centuryChineseCizhou ware: light gray stoneware with clear glaze over white-slip-coated applique decoration
11th-12th centuryChineseNorthern black ware of Cizhou type: light gray stoneware with dark brown glaze, the russet markings in overglaze iron oxide
12th centuryChineseTransparent emerald-green glass with red lead pigment on the surface
8th-12th centuryChineseJizhou ware: light gray stoneware with tortoiseshell glaze on the exterior, and with papercut decoration reserved in dark brown glaze against a variegated buff ground on the interior. From the Jizhou kilns near Yonghe, Ji'an, Jiangxi province.
12th-13th centuryChineseQingbai ware: porcelain with pale sky-blue glaze over incised, carved, and combed decoration
12th-13th centuryChineseJizhou ware: light gray stoneware with misfired dark brown glaze and bluish white markings, the markings probably from an application of ash
12th-13th centuryChineseNorthern black ware of Cizhou type: light gray stoneware with dark brown glaze, the rim with clear glaze over white slip
11th-12th centuryChineseQingbai ware: porcelain with pale, sky-blue glaze over molded decoration, the unglazed lip banded with silver. From the kilns at Jingdezhen, Jiangxi province, China
12th-13th centuryChineseNorthern black ware of Cizhou: off-white stoneware with dark brown glaze, the exterior with russet skin, the interior with russet markings in overglaze iron oxide
11th-12th centuryChineseSimulated jiaotai ware; light gray stoneware with pale yellow glaze over appliqué thin layers of brown and white clays laminated to simulate marbling
11th-13th centuryChineseJun ware: light gray stoneware with robin's-egg blue glaze enlivened with purple suffusions from copper filings
12th-13th centuryChinese