The Lernaean Hydra, a monster in Greek mythology, was killed by Hercules as the second of his Twelve Labors. The Hydra, an offspring of Typhon and Echidna, the father and mother of all monsters, had many heads. Each time a head was cut off, two more would grow out from the stump of its neck. Hercules is depicted on the reverse. Each 1 ounce copper round, enclosed a clear protective hard plastic case, comes in a velour pouch.