1986年中国世界野生动物基金25周年「野氂牛」精铸金币100元,重11.3克含.917金,总含金量10.4克(0.33盎司),NGC PF69 Ultra Cameo, #6136978-011。
People s Republic of China, gold proof 100 Yuan, 1986, 25th Anniversary of the World Wildlife Fund, Wild Yak , weighs 11.3g containing .917 gold, AGW 10.4g (0.33oz),NGC PF69 Ultra Cameo, #6136978-011.