1 Mun; Small Type Pyong

The "Small Type" designation here is meaningful. When the Joseon court resumed cash coin production in 1883 after a decades-long gap — King Gojong's government had suspended minting following the inflationary chaos caused by Heungseon Daewongun's massive 100-mun overvaluation scheme in the 1860s — two size variants entered production almost simultaneously. The smaller type was the practical concession, easier to produce in quantity and less likely to invite the hoarding that had plagued heavier issues.

Oseong #18.250 places this within a tightly catalogued series where mint marks and furnace codes on the reverse distinguish individual casting facilities.