民国二十年贵州省这当十锑币,NGC XF Details,有环境损害,罕版美品,#6478560-019,布威纳博士旧藏。Kweichow Province, Republic, China, antimony 10 cents, Year 20 (1931), (Y-429), NGC XF Details - environmental damage. A presentable example for this rare type. #6478560-019. Dr. Werner Burger Collection.