北宋大观通宝折十7枚,有华夏评级,尚·皮尔·米歇尔中国钱币系列,Northern Song Dynasty, group of 7x Da Guan Tong Bao, 10 cash, struck during the reign of Emperor Huizong, weighing from 14 grams to 18.5 grams, Huaxia genuine to 85 a lovely group, most coins with a lovely green patina (7)