NAN-BEI: Anonymous, 420-589, AE cash (1.8g), Hartill-, wu gong, graded 82 by GBCA Grading Company, VF, ex Dr. Dirk Löer Collection. This rare type was cast during the Northern and Southern dynasties, a period of political division in the history of China that lasted from 420 to 589, following the tumultuous era of the Sixteen Kingdoms and the Eastern Jin dynasty. See link for an example of this type from the China Numismatic Museum (www.cnm.com.cn/zgqbbwg/132460/137315/index.html).
