Macrinus and Diadumenian Æ28 Pentassarion of Markianopolis. Magistrate Pontianus. 

Obv: Bare head right of Diadumenian vis à vis laureate head left of Macrinus 
Rev: VP PONTIANOV MAPKIANOPOLEITWN, Aesklepios standing left, leaning on 
 serpent-staff, mantle draped over arm, E to right.  

Courtesy of Auction House H.D. Rauch, May 2007