民国七十七年纪念蒋故总统经国先生一盎士精铸金币,NGC PF70 Ultra Cameo,唯一冠军分,十分罕见,#6489839-001。Taiwan, proof gold 1 oz medal, 1988, Remembrance of Chiang Ching-Kuo, portrait of Chiang Ching-Kuo on obverse, flag over plum blossom on reverse, NGC PF 70 Ultra Cameo, Top Pop and the only one with this high grade, very rare. Cert.# 6489839-001