Punch-marked coins
Punch-marked coins were a type of karshapana or Ancient Indian coinage, also known as Aahat (stamped) coins, dating to between about the 6th and 2nd centuries BC. It was of irregular shape. These coins are found over most parts of subcontinent and remained in circulation till the early centuries CE. == History == === Janapada Coins === The study of the relative chronology of these coins has successfully established that the first punch-marked coins initially only had one or two punches, with the number of punches increasing over time.