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.
Bank of Korea (1909–1950)
The Bank of Joseon (Korean: 조선은행) or Bank of Chosen (Japanese: 朝鮮銀行) was the central bank of Colonial Korea, and of South Korea. The bank issued the Korean yen from 1910 to 1945 and the won from 1945 to 1950.