MID WESTERN HAN DYNASTY, 2ND CENTURY BC

Compare the mirror of this type with a similar treatment of the knob set on a quatrefoil within a square and with scrolling dragons in relief in the main field, but with the addition of four nipples, in the Sumitomo Collection, illustrated in the exhibition catalogue, Chinese Bronze Mirrors, Sen-Oku Hakuko Kan, Kyoto, 8 January - 6 March 2011, no. 21, where it is dated mid Western Han.