Claudius II, AE antoninianus. Cyzicus mint, AD 268-270. 22 mm, 3.42 g.

IMP C M AVR CLAVDIVS AVG, radiate head left with slight drapery on right shoulder, three dots below.
PAX AETERNA, Pax standing left, holding branch and sceptre. 

Mintmark: SPQR.

RIC 237 var (bust type): RIC MOM 944; Vienna 51179-51181; Alföldi XXX.25.

With permission of cngcoins.com, auction 259, Lot 367, July 2011.