China: Qing Dynasty (1644-1911 CE), coin-like charm with square hole, Guangdong mint production, obverse inscribed 'Bu yi ba gua', reverse showing Bagua, 20.8*1.4mm, 2.6g, Zhong Qian 80. Extremely fine, with trances of cinnabar, very rare..
Estimate: 500 - 1000