currency coin
通用銭 / currency-coin — Making
An ordinary coin, of the kind that really circulated.
Aureus of Claudius (found in Southern India)50–51 AD
Rupee of Aurangzeb (from a shipwreck)1113 AH (1702 AD)
Solidus of Justinian538–545 AD
A term used to distinguish them from mother coins or pattern coins. The majority of excavated coins one might handle fall into this category.