"Antler– Stags' horns are considered in Spain to be an omen of the evil eye, and to be a safeguard against its malignant influence.
Should the evil glance be cast, it is believed the horn recieves it and instantly snaps asunder. They wear a tip of horn mounted in silver or gold, as a charm."
Encyclopaedia of superstitions, folklore, and the occult sciences of the world. : a comprehensive library of human belief and practice in the mysteries of life ... Editorial staff: Cora Linn Daniels and C.M. Stevans. (1903). Chicago.