Sherd: Fragment of the Side Wall of a Jar or Wide-Mouthed Bowl with Decoration of Rolling, White-Capped Waves

Porcelain with a clear glaze

Terracotta

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

Ceramic

Terracotta

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

Light gray stoneware with celadon glaze

Ceramic

Guan ware: dark gray stoneware body with a misfired or degraded bluish green celadon glaze on the interior and with lightly crackled, grayish green celadon glaze on the exterior. From the Guan kilns near Hangzhou, Zhejiang province