Ming Dynasty (1368-1644)
Waterwell 6 3⁄4 x 6 3⁄4 inches (17.2 x 17.2 cm)
Grinding platform 7 x 7 inches (17.9 x 17.9 cm)
33 1⁄2 x 49 1⁄4 inches (85 x 125 cm)
18th Century
Diameter 12 5⁄8 inches (32 cm)
Height 4 3⁄8 inches (11 cm)
Ming Dynasty, Late 15th-Early 16th Century
Length 5 3⁄8 inches (13.7 cm)
Late Ming Dynasty, 17th Century
Height 2 3⁄4 inches (7 cm)
Qianlong Period, dated by inscription 1742
Height 4 inches (10.2 cm)
Base 4 x 4 1⁄4 inches (10.2 x 10.5 cm)