Guild Coin of the city state of Kaushambi, Copper Double-die struck, 0.84g, Obv: Four Brahmi characters on each corner. Legend ‘NI GA MA YE’ (Nigam means modern day corporations), Rev: A ‘horse shoe’ like symbol. Very fine, very rare. Kaushambi was among the 6 biggest cities of ancient India and due to its Geographical advantage, was among the most major centres of commerce and economic activity in that period.