Porcelain with decoration in underglaze cobalt-blue
17th centuryJapaneseInlaid celadon ware: light gray stoneware with celadon glaze over decoration inlaid in black and white slips
13th centuryKoreanCeramic
ChineseCeramic
EgyptianCeramic
EgyptianGuan ware: dark gray stoneware with light grayish blue glaze. From the guan kilns near Hangzhou, Zhejiang province
12th-13th centuryChineseTerracotta
Ceramic
KoreanTerracotta
5th-4th century BCEGreek