Hadrian TWO SNAKES Tetradrachm of Alexandria, Egypthome US $47.00 May-23-05 Hadrian, 117-138 AD, billon tetradrachm of 24.7 mm, 10.69 grams. Struck at the mint of Alexandria in Egypt. Obverse: Laureate bust right. Reverse: Agathodaemon serpent standing to right, Uraeus serpent standing to left, facing each other. Reference: Emmett 804. A most interesting type!