Gray earthenware
3rd millennium BCEChinesePale green glass
1st-4th century CERomanCeramic
EgyptianCeramic
12th-13th centuryPersianBlackened gray earthenware
3rd millennium BCEChineseYue ware: light gray stoneware with celadon glaze over incised decoration
10th-11th centuryChineseCeramic
KoreanTerracotta
6th century BCEGreekPigment on plaster
1st century CERoman