1 Mun Yi Chong

Cast in 1633 under King Injo, this issue emerged from a Korea still recovering from the devastating Japanese invasions of the 1590s and the subsequent Manchu incursions. Mun cash coins of this period circulated fitfully — Korea's economy remained stubbornly barter-based for much of the 17th century, and repeated government attempts to force coin use into daily commerce met persistent resistance from a population that simply preferred grain and cloth as exchange media.

KM#5 is among the earlier standardized cast issues from the Hojo (Board of Taxation) mints, though attribution among early Joseon cash types requires careful attention to reverse mint marks.