Sherd: Square Fragment from the Wall of a Circular Vessel

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

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

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

Yue ware: light gray stoneware with celadon glaze over incised and carved decoration

Longquan celadon ware: pale gray stoneware with matte-surfaced, 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 matte-surfaced, bluish green celadon glaze. From the Longquan kilns in Zhejiang 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 body with a lustrous, lightly crackled, bluish green celadon glaze. From the Longquan kilns in Zhejiang province.

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

Guan ware: dark gray stoneware body with a lightly crackled, bluish green celadon glaze. From the Guan kilns near Hangzhou, Zhejiang province

Ru ware: light gray stoneware body with pale bluish celadon glaze. From the Ru kilns, Henan province