Korea, Joseon Dynasty. Sang Pyong Tong Bo; 2 Mun. Military Training Command. 1742-1752. (7.02g; 30.6mm). O./ 常 平 寶 通 [Sand p'yong tong bo; Department of Korean Yi Dynasty, currency unit]. R./ 訓 荒 [(Hun): Hullyondogam Military training Command, (Huang): Shortage, character eight of the Thousand Character Classic]. Mandel#28.32.8. $30