Note:  Do not rely on this information. It is very old.

Agnus Dei

Agnus Dei, "the Lamb of God," is used: (1) as a title of Christ (John i. 29); (2) as the name of a prayer in the Catholic Church service; or a musical setting of the same; and (3) as the name for cakes of wax, silver, or gold stamped with the device of a lamb bearing a cross. These medals are consecrated by the Pope and given away to the people. They were formerly used as amulets (q.v.).