Cook Islands – Mystical Creatures – Gorgon Medusa – $1 – 2009 – Proof Colorized Crown – COA – From Greek mythology, a gorgon, a chthonic (relating to the underworld) female monster. Gazing upon her would turn onlookers into stone. This 40 millimeter legal-tender One Dollar colorized crown comes in a hard-plastic Air-Tite.