Huang Rui Yong 4 star ranked 1-oz gold Panda Expo medals:
1988 1 troz Hong Kong
1988 1 troz 97th ANA
1988 1 troz Basel Expo 'Au' marked
1988 1 troz Basel Expo 'Pt' marked error
1990 1 troz Zurich Expo
PP (if available, Basel Pt error already pictured above)