Genesis 33:19

And he bought a parcel of a field, where he had spread his tent, at the hand of the children of Hamor, for an hundred pieces of money. Jacob, trusting in the promises of the Lord and preparing for an even more permanent residence in Canaan than Abraham, bought a possession for himself during his lifetime. This piece of land, with the so-called Jacob's well, is shown to this day at the southeast opening of the valley of Shechem. Jacob paid for this land one hundred pieces of money, the value of which can no longer be determined. Some scholars think that each piece of money was worth as much as a lamb, while others are of the opinion that there was money in those days which, in a crude manner, had the figure of a lamb stamped upon it.