Three major Japanese product fair operators jointly held Currency History × Regional Products fairs at department stores, shopping malls, and station complexes across all 47 prefectures in May 2026. The new event format combines local ancient coin and modern currency exhibitions with regional product sales, surpassing one million cumulative visitors for the series. Walk-in traffic to the ancient coin industry exceeded five times the prior year, establishing product fair channels as a major route for acquiring new collectors.