China
Guangdong (Kwangtung) Maritime Customs 10 Tael Square Trough Ingot Certified XF by HuaXia, Cribb Class LVIII, 3 Stamps, 339.32g, 57x45mm (the ingot, not the holder). Certified XF, and authentic, and put in a secure holder, by the China certification service HuaXia. Rare.
HID02901242017
Estimate: 2000-3000 USD