100 Won

South Korea's copper-nickel coinage program of this period was shaped directly by the country's rapid industrialization under Park Chung-hee's government, which prioritized a stable, durable circulating coinage to support an economy growing at rates that regularly exceeded 10% annually. The 100 Won denomination, introduced in 1970, was the highest-value circulating coin in the series at the time of its launch — a reflection of how far purchasing power had shifted since earlier issues.

Park's assassination in October 1979 fell squarely within this coin's production run, yet the type continued unchanged through the political turbulence that followed, including Chun Doo-hwan's coup in 1980.