Licinius I AE follis, Rome. AD 313.

IMP LICINIVS PF AVG, laureate, draped and cuirassed bust right.
MARTI CO-NSERVATORI, Mars standing standing right, helmeted, 
in military dress, holding reversed spear, point downwards, 
left hand on shield.
R-F across fields.
Mintmark RS.

RIC VII Rome 7.
Extremely rare (R5)

Contributed by Richard Demarco of Carpe Diem Nvmismatics, April 2017.