Korea, Joseon Dynasty. Sang Pyong Tong Bo; 2 Mun. General Military Office. 1692-1752. (6.99g; 31.5mm). O./ 常 平 寶 通 [Sang p'yong tong bo; Department of Korean Yi Dynasty, currency unit]. R./ 捻 二 (Chong): General Military Office, (I) Series 2]. Mandel#24.11.0 $30