Cow Head Ancient Greek Jewelery Style Earrings. Cow Head Ancient Greek earrings! Another unique & perfect work with the difference Bulls were symbols of fertility & power sacred to Zeus, while cows were sacred to Hera, the wife of Zeus & patron of marriage. Hera; He wore cow-head necklaces & cow-head earrings that were sacred to him, Our ancient style earrings, which are made entirely of 925 sterling silver & 24 carat gold plated.! Weight is 21 grams Note: The original of the earrings is in the Walters Art Museum in America. Cow Head Ancient Greek Jewelery Style Earrings