KO92729. Copper 1 mun, Velde-Hartill type 24.6.9, SCWC KM 224.9, CKCB 18.246.9, Craig LCC 25, aVF, light highlighting deposits, Seoul, General Military Office mint, weight 5.305g, maximum diameter 25.3mm, die axis 0
o, 1757; obverse Sang Pyong Tong Bo (always even universal currency); reverse Chong (General Military Office) mintmark above, Ku (nine) below, crescent horns left on left touching rim;
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