Punch Marked Coin,VangaJanapada, Copper 1/2Karshapana,Obv:three symbols on the obverse include, a wheel, a six-armed symbol and a boat representingriverinetrade inbengal,Rev:conch shell (shank) single punch,2.90g,12.0 x 13.5mm,(Unlisted in Raj. Series),about very fine,Extremely Rare.