Sangam Cheras, Copper Square Unit, Obv: elephant to right, bow and arrow, three peaked hill, fish and several punches, Rev: bow and arrow,7.57g, 17.38 x 20.71mm, about very fine, VeryRare.
Usually this variety weighs about 3 to 4 grams,but this coin weighing double of the normal coins i.e,7.57g.
(2500-3000)