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 history of Korean currency dates back around 3rd century BC, when first coins in the form of knife coins, also known as "Myeongdojun" belonging to the state of Yan and Gojoseon said to have been circulated. Grain coins were put to use within the kingdoms for a long period of time. The kingdom of Goryeo issued its own version of grain coins and till 1097. The first iron and bronze coins minted in Korea occurred during the 15th year (996 AD) of the reign of King Seonjeong. During the reign of King Sukjong, a monetary system of casting a variety of coins was established in the years 1097-1107. These coins included the 東國 (Dongguk "Eastern Country"), 海東 (Haedong "Eastern Sea") and 三韓 (Samhan "Three States") series of coins. Coins made from metals other than iron like copper and also silver vase-shaped coins (unbyŏng 銀瓶) were issued in the 10th and 11th century but their circulation was limited).