Constantine I, AE Follis, Nicomedia, ca 312 AD. 

IMP C FL VAL CONSTANTINVS P F AVG, laureate head right.
HERCVLI VICTORI, Hercules Farnese standing right, leaning 
forwards, right hand behind his back, resting on club, lionskin over left arm.

Star over delta in left field.
Mintmark SMN.

RIC VI Nicomedia 75c (not in RIC for Constantine). 

With permission of www.constantinethegreatcoins.com. Oct. 2012.