Amazing Sichuan Eight-Petal Rhomboid-Shaped Navigation-Themed Bronze Mirror, Song Dynasty

In Novemver 1984, three adjacent stone vault tombs were discovered, in Dui yan Village, Duiyan Town, Ya’an City. Among them, the tomb on the left, fating back to the northern song dynasty, contained funerary objects, including this Eight-Petal Rhomboid-shaped Navigation-Themed Bronze Mirror.