Tacitus AE antoninianus, Antioch mint. 

IMP C M CL TACITVS AVG, radiate, draped and cuirassed bust right
CLEMENTIA TEMP, Tacitus standing right, holding eagle-tipped 
sceptre, receiving globe from Jupiter, standing left, holding 
sceptre.
H in lower centre, mintmark XXI. 

With permission of TimeLine Originals (www.time-lines.co.uk), December, 2012