Macrinus and Diadumenian, AE27, Markianopolis. 

Obv: AV K M OPEL MAKPEINOC K M OPEL ANTWNEINOC, Laureate head of Macrinus 
 facing bare-headed bust of Diadumenian 
Rev: VP PONTIANOV MAPKIANOPOLEITWN, Serapis with kalathos (modius) on head, 
 standing left, holding sceptre across left arm and raising right arm; 
 retrograde E in left field. 

Ref. Hristova/Jekov 6.24.6.3, AMNG 720 (standing facing) var (not in 
 Varbanov or Moushmov)
Contributed by Dane for George Clegg (biggyg2), April, 2008.