CHINA. Shandong Gaobianbao. Provincial High-Sided Ingots. 50 Tael Maritime Customs Ingot, ND.1877.10 gms. BMC-Class IX Group A #77. Three stamps across face, a horizontal across the top and two vertical to either side. Center: "Dong Hai Guan" (Shandong Maritime Customs). Right: "Guang Xu Nian Yue" (Guangxu Period). Left: "Jiang Zeng Xie Zhong" (Smith: Zeng Xiezhong).EXTREMELY FINE.