Watch List notes:

Punch-Marked Coin, Vidarbha(Andhra)Janapada(600 BC),Silver 1/2 Karshapana,ABCC Type,Obv:elephant, turtle and twice geometric symbol,Rev:traces of original symbol,1.64g, 19.0mm,about very fine,Rare.

May be another die has been struckedon reverse.
(3000-4000)