Tacitus, AV Aureus, Rome.

Obv: IMP CM CL TACITVS AVG, Laureate, cuirassed bust right.
Rev: ROMAE AETERNAE, Roma seated left, holding globe and sceptre. 

RIC 75 var (bust type).
Courtesy of Numismatica Ars Classica, June. 2006

Notes:
RIC lists a number of the ROMAE AETERNAE types with various
bust types and obverse legends. Roma can be holding a
combination of a globe or Victory on globe and a spear or
sceptre. But this bust type is unlisted for this legend AND
Roma holding a globe and sceptre.