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Macrinus and Diadumenian AE28 of Markianopolis, Moesia. Magistrate Pontianos.

AY K OPEL CEY MAKREINOC K M OPEL ANTWNEINOC, Laureate,  draped and cuirassed bust of Macrinus right, facing bare headed draped and cuirassed bust of Diadumenian left.
YP PONTIANOY MARKIANOPOLEITWN, Athena seated left, holding Nike, spear and shield behind her, owl perched on rim of shield. 
Reversed E to left 

AMNG I 737; Hristova/Jekov 6.24.4.4; Varbanov 1175; Moushmov 567.