Diadumenian, AE27 of Nikopolis ad Istrum. Magistrate Statius Longinus.

K M OPELLI DIADOU-MENIANOC, bare-headed, draped, cuirassed bust right.
UP CTA LONGI-NOU NIKOPOLITWN PRO-C I, Emperor on horseback 
right, cape waving behind, holding spear, kneeling captive 
below

With permission of Numismatik Lanz München, Auction 109, lot 666.

Varbanov 3711; AMNG 1870; Moushmov 1334.