Aurelian, AE denarius, Milan.

IMP AVRELIANVS AVG, laureate, draped bust right.
DACIA FELIX, Dacia standing left, holding Roman-type standard.

RIC V-1, 108 Milan var (bust type, type of standards). Reverse type similar to the one used by Trajan Decius.

Courtesy of Numismatica Ars Classica, March 2011.
Auction 42, lot 177