London 1908 Olympic Games rare gold-plated bronze participation medal by Bertram MacKennal

London 1908 Olympic Games rare gold-plated bronze participation medal by Bertram MacKennal, awarded to important dignitaries, the obverse designed with a winged figure of victory and inscribed ELIS ATHENS PARIS ST LOUIS LONDON, IN COMMOMORATION OF THE OLYMPIC GAMES HELD IN LONDON 1908, the reverse with quadriga winning a chariot race