Severus Alexander, AE25 of Abydus, Troas.

AY KAI AYR CEOYH ALEXANDROC, laureate, draped and cuirassed bust right.
EP AR AY PROKLOY ABY, Poseidon, naked, standing right, foot 
on rock, holding trident and dolphin.

Waddington 1078; Paris 107; BMC 62 var (obv. legend).

Courtesy of the Bibliotheque Nationale, Paris, gallica.bnf.fr.