Watch List notes:

CHINA, Míng dynasty. Mùzōng. AD 1567-1572. Æ Cash (25mm, 3.17 g). Cast 1570-1572. Long Qing Tong Bao in Hànzì characters / Blank. Hartill 20.138. Green and brown patina, roughness, encrustations on reverse. Fine. Rare – the only type issued for this ruler.