Caracalla, AE28 of Nikopolis ad Istrum, Moesia. Magistrate Gallus.

AV K M AV ANTWNINOC, laureate head right.
VP AVR GALLOV NIKOPOLITW PROC IC, Hermes standing left,
holding purse and caduceus.

Varbanov 3059 (this coin)

With kind permission of Numismatik Lanz, auction 2003. 
Added Oct. 2011.