春秋战国时期南方的楚国,铸行了一种铜质流通货币——楚铜贝。这种楚铜贝一端稍大,另一端较小且有孔(孔有通孔和不通孔之分),形状近似椭圆形,正面凸起并有阴文文字,背面平夷。根据币面文字的不同,泉界将文为 Chu State during the Spring and Autumn and Warring States Period in the south, cast a copper currency of circulation - Chu copper shell. This kind of copper shell is slightly larger at one end and smaller at the other end. It has holes (there are holes and no holes). The shape of the shell is oval in shape. According to the different coin text, the text will be spring