云南省造光绪元宝库平七钱二分,新龙四圈版,NGC AU Details (严重清洗),#6374408-039,布威纳博士旧藏。Yunnan Province, silver $1, ND (1911), Guangxu Yuan Bao , new dragon, 4 circles below pearl variety, (Y-258, LM-421), NGC AU Details (Harshly Cleaned), Cert. #6374408-039. Dr. Werner Burger Collection.