Seven star oxtail,heavily damaged on surface,rough fuller,heavy damage in the middle,an old Dao in mid and late Qing dynasty,not a good Dao,let alone precious Dao.

• 七星牛尾，表面磨损严重，血槽显得粗糙，中部亏刃严重，是把清中晚老刀，不算好刀，离宝刀更是差远了。