Korea, Joseon Dynasty. Sang Pyong Tong Bo; 1 Mun. Military Training Command. 1832. (3.87g; 23.9mm). O./ 常 平 寶 通 [Sand p'yong tong bo; Department of Korean Yi Dynasty, currency unit]. R./ 訓 生 七  [(Hun):Hullyondogam Military training Command, (Saeng): To Produce, (Qi) Series ten to left]. Mandel#28.20.10. $25