1990年秋,内蒙古文物考古研究所在元上都附近砧子山墓地,于10号墓中出土一枚至元通宝银钱。钱为模铸,径2厘米,略有锈,钱文清楚。面四字楷书对读,大小不一,与传世至元通宝铜钱相较,通宝两字都较长,宝字末笔已接近元字左上角。正面外郭较内郭粗,背面内、外郭均较正面宽。穿孔上大下小,不甚规整。 In the autumn of 1990, the Inner Mongolia Institute of Cultural Relics and Archeology unearthed an ancestral hill cemetery near Yuan and unearthed a Yuanbao treasury in No. 10 tomb. Money is molded, diameter 2 cm, a little rust, money clear. The four-word regular script on the reading, the size of different, compared with the pass to the treasure Tongbao, Tongbao word longer, the word at the end of the word is close to the upper left corner of the word. Front Guo Guo Guo thick than the back, the outer Guo are wider than the front wide. Perforated small, not very structured.