Aurelian. A.D. 270-275. AE Antoninianus. 3.6g.
Milan mint, 

IMP AVRELIANVS AVG, Radiate, draped and cuirassed bust r. 
ROMAE ATERNAE. Emperor standing r. before Roma seated l. 
on shield; Q in exergue
RIC 142. Cohen 219.

With permission of Auktionshaus H. D. Rauch GmbH
Sept. 2011.