For sale: A piece of Japanese history – 5 Sen note (1948) For enthusiasts and collectors of historical currencies, an opportunity to own the smallest paper currency in Japan's history, issued in 1948 (Series A) during the critical post-World War II period. Denomination: 5 Sen (equivalent to 5% of the Japanese Yen – officially abolished in 1953). Condition: Good condition (details are clearly visible in the photos). This piece embodies a unique historical phase in Japan's economic recovery and is an excellent addition to any professional collection. Contact via private messages for those interested.