Sherd: Triangular Fragment from the Mouth of a Cylindrical 'Zun'-Shaped Censer with Horizontal Ribs

Guan ware: molded dark gray stoneware with misfired, or degraded, light grayish blue glaze. From the guan kilns near Hangzhou, Zhejiang province

Longquan celadon ware: light gray stoneware body with celadon glaze. From the Longquan kilns, Zhejiang province

Longquan celadon ware: light gray stoneware body with pale bluish celadon glaze over carved or molded decoration. From the Longquan kilns, Zhejiang province

Longquan celadon ware: molded, pale gray stoneware with lightly crackled, bluish green celadon glaze. From the Longquan kilns in Zhejiang province

Longquan celadon ware: pale gray stoneware with bluish green celadon glaze. From the Longquan kilns in Zhejiang province

Longquan celadon ware: molded, pale gray stoneware with lightly crackled, transparent, bluish green celadon glaze. From the Longquan kilns in Zhejiang province

Longquan celadon ware: light gray stoneware body with grayish celadon glaze. From the Longquan kilns, Zhejiang province

Guan ware: dark gray stoneware with lightly crackled, light grayish blue glaze on the exterior and with thinly applied, crackled light grayish green glaze on the interior. From the guan kilns near Hangzhou, Zhejiang province.

Jizhou ware: light gray stoneware with decoration painted in iron-brown slip under thinly applied, clear glaze. From the Jizhou kilns near Yonghe, Ji'an, Jiangxi province

Guan ware: dark gray stoneware with lightly crackled, light grayish blue glaze. From the guan kilns near Hangzhou, Zhejiang province

Longquan celadon ware: pale gray stoneware with lustrous, lightly crackled, transparent, bluish green celadon glaze. From the Longquan kilns in Zhejiang province

Guan ware: molded dark gray stoneware with lightly crackled, light grayish blue glaze on the interior and with misfired (i.e. bubbled/cratered) light grayish blue glaze on the exterior. From the guan kilns near Hangzhou, Zhejiang province