大唐镇库开元通宝臆造银章 完未流通。
China. Fantasy Medal of Tang Dynasty. Silver. 182 grams. 78.4 mm. Milled edge. Obverse: The Great Tang Empire Da Tang Pattern coin reserved Zhen Ku in the mint. Reverse; Year of Emperor Li Longii Kai Yuan, 713-741AD Currency Tong Bao Two dragons. Extremely Fine. Estimate Value 200 - 250