5 Won

South Korea's brass 5 Won was issued during a period of aggressive export-led industrialization under Park Chung-hee, whose military government had seized power in 1961. The coin's production window corresponds almost exactly with the First and Second Five-Year Economic Plans, when per-capita income was still under $200 and this denomination carried genuine purchasing power in daily transactions.

The series was eventually displaced as inflation eroded the 5 Won's utility through the 1970s.