Tacitus, AV Aureus, Rome.

Obv: IMP CM CL TACITVS AVG, Laureate, draped and cuirassed bust right.
Rev: ROMAE AETERNAE, Roma seated left, holding Victory on globe and sceptre. 
SC in exergue.

RIC 75; Estiot 102
Courtesy of Numismatica Ars Classica, Nov. 2005