'Shekels of Silver' in the Bible

and they shall fine him a hundred shekels of silver, and give them unto the father of the damsel, because he hath caused an evil name to be spread abroad against a virgin in Israel. And she shall remain his wife: he may not put her away all his days.

then the man that lay with her shall give unto the damsel's father fifty shekels of silver, and she shall be his wife, because he hath humbled her; he may not put her away all his days.