Tacitus AE Antoninianus. Lugdunum Mint. 

IMP CL TACITVS AVG, Radiate, draped, and cuirassed bust r.
MARS VICTOR, Mars advancing r., holding spear and trophy; 
B in l. field, star in r. field.

RIC 30 Bust Type C. Cohen 57 (corr.). Bastien 96 (51)

Used with permission of CNG (cngcoins.com), April, 2009