Korea, Joseon Dynasty. Sang Pyong Tong Bo; 2 Mun. Military Training Command. 1752. (4.81g; 28.6mm). O./ 常 平 寶 通 [Sand p'yong tong bo; Department of Korean Yi Dynasty, currency unit]. R./ 訓 二 [(Hun):Hullyondogam Military training Command, (I): Series/furnace 2, crescent to left]. Mandel#28.47.2. $30