Caduceus

Depicts Iris with a caduceus;  from an ancient Greek clay vase. London. Sotheby's. Photo. Sotheby's London F15923.A divine wand, in Greek 'kerykeion', especially carried by heralds, Hermes, Iris and others. Originally a forked stick, the terminals become stylized into loops, and then snakes.

Above: Depicts Iris with a caduceus; from an ancient Greek clay vase. London. Sotheby's. Photo. Sotheby's London F15923. © Sotheby's