Aurelian AE antoninianus. Cyzicus mint. AD 274. 

Obv: IMP AVRELIANVS AVG, radiate, cuirassed bust right. 
Rev: P M TR P P, lion walking right, COS in exergue.

RIC V-1, 325; Sear 11586 var (rev. legend). 
Scarce.

With permission of TimeLine Auctions (www.timelineauctions.com), December, 2013