Claudius II, AE antoninianus, Cyzicus mint.

IMP CM AVR CLAVDIVS AVG, radiate, draped, cuirassed bust right.
VICTORIA GVTTICA AVG, two captives bound and seated back to back 
at the base of a trophy.

Mintmark SPQR.

RIC V-1, 251 var (rev. legend).
Rare.
Courtesy of Finn Johannssen's collection.