White Spiral on Black

Ming dynasty (1368–1644), Jiajing mark and period (1522–66)

Qing dynasty, 1st quarter of the 20th century

18th century

Qing dynasty, Yongzheng period, 1723-35

early 20th century

1st 3rd of the 13th century

Zhou dynasty, Warring States period, 475-221 B.C.E.

Mycenaean period, Late Helladic III A:2, ca. 1400-1375 B.C.E.

1993

1960