KO92730. Copper 1 mun, Velde-Hartill type 25.4A.6, SCWC KM 276.1.6, CKCB 18.234A, Craig LCC 5, aVF, light deposits, Seoul, Special Army Unit mint, weight 4.502g, maximum diameter 29.6mm, die axis 0
o, 1750; obverse Sang Pyong Tong Bo (always even universal currency); reverse Yong (Special Army Unit) mintmark above, Yuk (six) below, circle left;
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