Tacitus, AV light aureus. Lyons mint.

IMP C M CL TACITVS AVG, laureate, draped, cuirassed bust right.
PAX PVBLICA, Pax standing left, holding olive branch and 
transverse sceptre. 

RIC 3; Sear5 11752

With permission of Numismatica Ars Classica, 2007.