Tokyo 1964 Olympic Games participant's medal, designed by T. Okamoto and K. Tanaka.

Tokyo 1964 Olympic Games participant's medal, designed by T. Okamoto and K. Tanaka, copper, the obverse with stylised figures of  three runners and a swimmer, inscribed OKAMOTO TANAKA, the reverse with Olympic Rings and legend in Japanese and English, inscribed XVIII OLYMPIAD TOKYO 1964, rim bearing mint stamp, in original box, diameter 61mm.