Maximianus, AE antoninianus, Rome mint. 293-295 AD. 

IMP MAXIMIANVS PF AVG, radiate bust left, wearing imperial
mantle, holding eagle-tipped sceptre.
PRIMIS X MVLTIS XX, Hercules standing right, holding club 
in right hand, bow in left, lionskin draped over left arm.
R in left field.

Mintmark XXI Epsilon

RIC V-II 511, rated scarce.

Contributed by Miroslav Jovanovic, Oct. 2011.