Macrinus, AE of Ephesos, Ionia. 6.45 g. 

AYT K M OPEL CEOUH MAKREINOC, laureate, cuirassed bust right.
EFECIWN PRWTWN ACIAC, Poseidon, standing left, one foot on prow,
holding cult image of Artemis Ephesia and serpent-entwined
trident. 

Aufhäuser Auction 11 (March 1995), lot 291.

Courtesy of Helios Auction 5, June 2011