Porcelain with decoration in overglaze polychrome enamels; with underglaze cobalt-blue double circle on the base
17th centuryChineseReddish earthenware covered in whitish slip and painted in red (iron), black (manganese and iron), and green (chromium) under clear lead glaze
10th-11th centurySilver
18th centuryAmericanBlue, red, and white ware: porcelain with decoration painted in underglaze cobalt blue and underglaze copper red; with (spurious?) underglaze cobalt blue mark reading "Da Qing Yongzheng nian zhi" on the base
ChineseBlue-green glass
4th-5th century CERomanExport blue-and-white ware: porcelain with decoration painted in underglaze cobalt blue
19th centuryChinesePlaster
Terracotta
6th-5th century BCEEtruscanTerracotta
7th century BCEEtruscanMetal
20th centuryGerman