2 Mun Kum

The 2 Mun issues of mid-18th century Joseon were cast, not struck — produced using the traditional East Asian sand-casting method in which molten metal was poured into clay or sand molds, each coin finished individually by hand filing. KM#409 was produced at one of several government foundries authorized to mint cash coinage under the Sangpyeong Tongbo system, established in 1678 to unify Korea's fragmented currency. The specific mint is identifiable by the reverse characters, which distinguish foundry output across dozens of authorized facilities.