Korean currency
The yen was the currency of Korea during the Colonial rule, from 1910 to 1945, and was issued by the Bank of Joseon It was equivalent to the Japanese yen and consisted of Japanese currency and banknotes issued specifically for Korea. It was replaced by the South Korean won at par in 1945, and by the North Korean won in 1947.
Korean currency
The won was introduced in 1902, replacing the yang at a rate of 1 won = 5 yang. In 1909, the Bank of Korea was founded in Seoul as a central bank and began issuing currency of modern type. The won was equivalent to the Japanese yen and was replaced by the Korean yen in 1910. At the same time, Korean yen notes issued by Dai Ichi Ginko (First National Bank (of Japan), 株式會社第一銀行) also circulated.