Korean yen
The Korean yen was the currency of Korea between 1910 and 1945. It was equivalent to the Japanese yen and consisted of Japanese currency and banknotes issued specifically for Korea. The yen was subdivided into 100 sen. It replaced the Korean won at par and was replaced by the South Korean won and the North Korean won at par.
Chollima Movement
Chollima has been used as a brand name for trucks, buses, and tractors in North Korea. One of the lines on the Pyongyang Metro is called Chollima, as is the North Korean national football team. The winged horse has been depicted on North Korean currency starting in 1978, as well as being seen on postage stamps.