CHINA. Beijing Shizuyinbao. Beijing City Pure Silver Ingots. 10 Tael Bank Ingot, ND.371.14 gms. cf.BMC-Class XXII Group C #184. "Shi Zhu Se" (Pure quality). "Bao Yuan Xiang" (Baoyuanxiang Bank). A third vertical stamp in center which may name the responsible smith. The quality stamp has indented corners and a dot in the lower right corner of "shi". Test cut on bottom of ingot.VERY FINE.